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mondofacto - Online Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 26/01/2008, UK Words: 116197

musculus sacrococcygeus posterior
Synonym for dorsal sacrococcygeus muscle ... <anatomy> An inconstant and poorly developed muscle on the dorsal surfaces of the sacrum and coccyx, the remains of a portion of the tail musculature of lower animals. ... Synonym: musculus sacrococcygeus dorsalis, dorsal sacrococcygeal muscle, musculus extensor coccygis, musculus sacrococcygeus post …

musculus sacrococcygeus ventralis
Synonym for ventral sacrococcygeus muscle ... <anatomy> An inconstant muscle on the pelvic surfaces of the sacrum and coccyx, the remains of a portion of the tail musculature of lower animals. ... Synonym: musculus sacrococcygeus ventralis, musculus sacrococcygeus anterior, ventral sacrococcygeal muscle. ... (05 Mar 2000) ...

musculus sacrolumbalis
Synonym for iliocostalis lumborum ... <anatomy, muscle> Origin, with erector spinae; insertion, the angles of lower six ribs; action, extends, abducts, and rotates lumbar vertebrae; nerve supply, dorsal branches of thoracic and lumbar nerves. ... Synonym: musculus iliocostalis lumborum, lumbar iliocostal muscle, musculus sacrolumbalis. ... (05 M …

musculus sacrospinalis
Synonym for erector spinae muscles ... Origin, from sacrum, ilium, and spines of lumbar vertebrae; it divides into three columns, iliocostalis musculus, longissimus musculus, and spinalis musculus, which insert into ribs and vertebrae with additional muscle slips joining the columns at successively higher levels; action, extends vertebral column; ne …

musculus salpingopharyngeus
Synonym for salpingopharyngeus ... <anatomy, muscle> Origin, medial lamina of cartilaginous part of auditory tube; insertion, longitudinal muscular layer of pharynx in association with musculus palatopharyngeus; action, assists in elevating pharynx and, according to some, assists in opening the auditory tube during swallowing; nerve supply, ph …

musculus sartorius
Synonym for sartorius ... <anatomy, muscle> Origin, anterior superior spine of ilium; insertion, medial border of tuberosity of tibia; action, flexes thigh and leg, rotates leg medially and thigh laterally; nerve supply, femoral. ... Synonym: musculus sartorius, tailor's muscle. ... (05 Mar 2000) ...

musculus scalenus anterior
scalenus anterior muscle ...

musculus scalenus anticus
Synonym for scalenus anterior ... <anatomy, muscle> Origin, anterior tubercles of transverse processes of third to sixth cervical vertebrae; insertion, scalene tubercle of first rib; action, raises first rib; nerve supply, cervical plexus. ... Synonym: musculus scalenus anterior, anterior scalene muscle, musculus scalenus anticus. ... (05 Mar 20 …

musculus scalenus medius
Synonym for scalenus medius ... <anatomy, muscle> Origin, costotransverse lamellae of transverse processes of second to sixth cervical vertebrae; insertion, first rib posterior to subclavian artery; action, raises first rib; nerve supply, cervical plexus. ... Synonym: musculus scalenus medius, middle scalene muscle. ... (05 Mar 2000) ...

musculus scalenus minimus
Synonym for scalenus minimus muscle ... <anatomy> An occasional independent muscular fasciculus between the scalenus anterior and medius, and having the same action and innervation. ... Synonym: musculus scalenus minimus, Albinus' muscle, Sibson's muscle, smallest scalene muscle. ... (05 Mar 2000) ...

musculus scalenus posterior
Synonym for scalenus posterior ... <anatomy, muscle> Origin, posterior tubercles of transverse processes of fourth to sixth cervical vertebrae; insertion, lateral surface of second rib; action, elevates second rib; nerve supply, cervical and brachial plexuses. ... Synonym: musculus scalenus posterior, musculus scalenus posticus, posterior scale …

musculus scalenus posticus
Synonym for scalenus posterior ... <anatomy, muscle> Origin, posterior tubercles of transverse processes of fourth to sixth cervical vertebrae; insertion, lateral surface of second rib; action, elevates second rib; nerve supply, cervical and brachial plexuses. ... Synonym: musculus scalenus posterior, musculus scalenus posticus, posterior scale …

musculus semimembranosus
Synonym for semimembranosus ... <anatomy, muscle> Origin, tuberosity of ischium; insertion, medial condyle of tibia and by membrane to tibial collateral ligament of knee joint, popliteal fascia, and via its reflected tendon of insertion (oblique popiteal ligament) lateral condyle of femur; action, flexes knee and rotates leg medially when knee …

musculus semispinalis
Synonym for semispinalis muscle ... <anatomy> The most superficial layer of the three layers of the transversospinal muscle; comprised of semispinalis capitis, semispinalis cervicis, and semispinalis thoracis muscles. ... Synonym: musculus semispinalis, semispinal muscle. ... (05 Mar 2000) ...

musculus semispinalis capitis
Synonym for semispinalis capitis ... <anatomy, muscle> Origin, transverse processes of five or six upper thoracic and articular processes of four lower cervical vertebrae; insertion, occipital bone between superior and inferior nuchal lines; action, rotates head and draws it backward; nerve supply, dorsal primary rami of cervical spinal nerves …

musculus semispinalis cervicis
Synonym for semispinalis cervicis muscle ... <anatomy> Continuous with musculus semispinalis thoracis; origin, transverse processes of second to fifth thoracic vertebrae; insertion, spinous processes of axis and third to fifth cervical vertebrae; action, extends cervical spine; nerve supply, dorsal primary rami of cervical and thoracic spinal …

musculus semispinalis colli
Synonym for semispinalis cervicis muscle ... <anatomy> Continuous with musculus semispinalis thoracis; origin, transverse processes of second to fifth thoracic vertebrae; insertion, spinous processes of axis and third to fifth cervical vertebrae; action, extends cervical spine; nerve supply, dorsal primary rami of cervical and thoracic spinal …

musculus semispinalis dorsi
Synonym for semispinalis thoracis ... <anatomy, muscle> Origin, transverse processes of fifth to eleventh thoracic vertebrae; insertion, spinous processes of first four thoracic and fifth and seventh cervical vertebrae; action, extends vertebral column; nerve supply, dorsal primary rami of cervical and thoracic spinal nerves. ... Synonym: muscu …

musculus semispinalis thoracis
Synonym for semispinalis thoracis ... <anatomy, muscle> Origin, transverse processes of fifth to eleventh thoracic vertebrae; insertion, spinous processes of first four thoracic and fifth and seventh cervical vertebrae; action, extends vertebral column; nerve supply, dorsal primary rami of cervical and thoracic spinal nerves. ... Synonym: muscu …

musculus semitendinosus
Synonym for semitendinosus ... <anatomy, muscle> Origin, ischial tuberosity; insertion, medial surface of the upper fourth of shaft of tibia; action, extends thigh, flexes leg and rotates it medially; nerve supply, tibial. ... Synonym: musculus semitendinosus. ... (05 Mar 2000) ...

musculus serratus anterior
Synonym for serratus anterior ... <anatomy, muscle> Origin, from centre of lateral aspect of first eight to nine ribs; insertion, superior and inferior angles and intervening medial margin of scapula; action, rotates scapula and pulls it forward, elevates ribs; nerve supply, long thoracic from brachial plexus. ... Synonym: musculus serratus ant …

musculus serratus magnus
Synonym for serratus anterior ... <anatomy, muscle> Origin, from centre of lateral aspect of first eight to nine ribs; insertion, superior and inferior angles and intervening medial margin of scapula; action, rotates scapula and pulls it forward, elevates ribs; nerve supply, long thoracic from brachial plexus. ... Synonym: musculus serratus ant …

musculus skeleti
Synonym for skeletal muscle ... <anatomy, pathology> A rather non-specific term usually applied to the striated muscle of vertebrates that is under voluntary control. ... The muscle fibres are syncytial and contain myofibrils, tandem arrays of sarcomeres. ... (18 Nov 1997) ...

musculus soleus
Synonym for soleus ... <anatomy, muscle> Origin, posterior surface of head and upper third of shaft of fibula, oblique line and middle third of medial margin of tibia, and a tendinous arch passing between tibia and fibula over the popliteal vessels; insertion, with gastrocnemius by tendo calcaneus (achillis) into tuberosity of calcaneus; actio …

musculus sphenosalpingostaphylinus
Synonym for tensor veli palati muscle ... <anatomy> Tensor muscle of soft palate, musculus tensor palati; musculus palatosalpingeus; musculus sphenosalpingostaphylinus; dilator tubae; origin, scaphoid fossa of sphenoid, cartilaginous and membranous part of auditory (eustachian) tube and spine of sphenoid; insertion, posterior border of hard pa …

musculus sphincter
Synonym for sphincter ... <anatomy> A ringlike band of muscle fibres that constricts a passage or closes a natural orifice, also called musculus sphincter. ... Origin: L., Gr. Sphinkter = that which binds tight ... (18 Nov 1997) ...

musculus sphincter ani externus
Synonym for external anal sphincter ... A fusiform ring of striated muscular fibres surrounding the anus, attached posteriorly to the coccyx and anteriorly to the central tendon of the perineum; it is subdivided, often indistinctly, into a subcutaneous part, a superficial part and a deep part for descriptive purposes. ... Synonym: musculus sphincter …

musculus sphincter ani internus
Synonym for internal anal sphincter ... <anatomy> A smooth muscle ring, formed by an increase of the circular fibres of the rectum, situated at the upper end of the anal canal, internal to the outer voluntary external anal sphincter. ... This sphincter is maximally-contracted when the rectal ampulla is at rest -empty or relaxed to accommodate a …

musculus sphincter oris
Synonym for orbicularis oris ... <anatomy, muscle> Origin, by nasolabial band from septum of the nose, by superior incisive bundle from incisor fossa of maxilla, by inferior incisive bundle from lower jaw each side of symphysis; insertion, fibres surround mouth between skin and mucous membrane of lips and cheeks, and are blended with other mus …

musculus sphincter pupillae
Synonym for sphincter pupillae ... A ring of smooth muscle fibres surrounding the pupillary border of the iris. ... Synonym: musculus sphincter pupillae, sphincter muscle of pupil. ... (05 Mar 2000) ...

musculus sphincter pylori
Synonym for pyloric sphincter ... A thickening of the circular layer of the gastric musculature encircling the gastroduodenal junction. ... Synonym: musculus sphincter pylori, sphincter muscle of pylorus. ... (05 Mar 2000) ...

musculus sphincter urethrae
Synonym for sphincter urethrae ... Origin, ramus of pubis; insertion, with fellow in median raphe behind and in front of urethra; action, constricts membranous urethra; nerve supply, pudendal. ... Synonym: musculus sphincter urethrae, external urethral sphincter, Guthrie's muscle, musculus compressor urethrae, musculus constrictor urethrae, musculus …

musculus sphincter vaginae
Synonym for bulbocavernosus muscle ... <anatomy> In the male: origin, the perineal membrane fascia on the dorsum of the bulb of the penis; insertion, central tendon of the perineum and the median raphe on the free surface of the bulb; action, constricts bulbous urethra when attempting to expel last drops following urination, or spasmodically w …

musculus sphincter vesicae
Synonym for sphincter vesicae ... The complete collar of smooth muscle cells of the neck of the urinary bladder which extend distally to surround the preprostatic sportion of the male urethra. There is not a comparable structure in the neck of the femoral bladder; the internal urethral sphincter may exist to prevent reflux of semen into bladder. ... …

musculus spinalis
Synonym for spinalis muscle ... <anatomy> The medial component of the erector spinae muscle; it is comprised of the spinalis capitis, spinalis cervicis, and spinalis thoracis muscles. ... Synonym: musculus spinalis, spinal muscle. ... (05 Mar 2000) ...

musculus spinalis capitis
Synonym for spinalis capitis muscle ... <anatomy> An inconstant extension of spinalis cervicis to the occipital bone, sometimes fusing with semispinalis capitis. ... Synonym: musculus spinalis capitis, biventer cervicis, spinal muscle of head. ... (05 Mar 2000) ...

musculus spinalis cervicis
Synonym for spinalis cervicis muscle ... <anatomy> An inconstant or rudimentary muscle; origin, spinous processes of sixth and seventh cervical vertebrae; insertion, spinous processes of axis and third cervical vertebra; action, extends cervical spine; nerve supply, dorsal primary rami of cervical. ... Synonym: musculus spinalis cervicis, muscu …

musculus spinalis colli
Synonym for spinalis cervicis muscle ... <anatomy> An inconstant or rudimentary muscle; origin, spinous processes of sixth and seventh cervical vertebrae; insertion, spinous processes of axis and third cervical vertebra; action, extends cervical spine; nerve supply, dorsal primary rami of cervical. ... Synonym: musculus spinalis cervicis, muscu …

musculus spinalis dorsi
Synonym for spinalis thoracis ... <anatomy, muscle> Origin, spinous processes of upper lumbar and two lower thoracic vertebrae; insertion, spinous processes of middle and upper thoracic vertebrae; action, supports and extends vertebral column; nerve supply, dorsal primary rami of thoracic and upper lumbar. ... Synonym: musculus spinalis thoraci …

musculus spinalis thoracis
Synonym for spinalis thoracis ... <anatomy, muscle> Origin, spinous processes of upper lumbar and two lower thoracic vertebrae; insertion, spinous processes of middle and upper thoracic vertebrae; action, supports and extends vertebral column; nerve supply, dorsal primary rami of thoracic and upper lumbar. ... Synonym: musculus spinalis thoraci …

musculus splenius capitis
Synonym for splenius capitis ... <anatomy, muscle> Origin, from ligamentum nuchae of last four cervical vertebrae and supraspinous ligament of first and second thoracic vertebrae; insertion, lateral half of superior nuchal line and mastoid process; action, rotates head and extends neck; nerve supply, dorsal primary rami of second to sixth cerv …

musculus splenius cervicis
Synonym for splenius cervicis ... <anatomy, muscle> Origin, from supraspinous ligament and spinous processes of third to fifth thoracic vertebrae; insertion, posterior tubercles of transverse processes of first and second (sometimes third) cervical vertebrae; action, rotates and extends neck; nerve supply, dorsal primary rami of fourth to eigh …

musculus splenius colli
Synonym for splenius cervicis ... <anatomy, muscle> Origin, from supraspinous ligament and spinous processes of third to fifth thoracic vertebrae; insertion, posterior tubercles of transverse processes of first and second (sometimes third) cervical vertebrae; action, rotates and extends neck; nerve supply, dorsal primary rami of fourth to eigh …

musculus stapedius
Synonym for stapedius ... <anatomy, muscle> Origin, arises from the wall of the middle ear (internal walls of pyramidal eminence in tympanic cavity); insertion, neck of the stapes; action, dampens vibration of stapes by drawing head of stapes backward as a result of a protective reflex stimulated by loud noise; nerve supply, facial. ... Synonym …

musculus sternalis
Synonym for sternalis ... <anatomy> An inconstant muscle, running parallel to the sternum across the costosternal origin of the pectoralis major, and usually connected with the sternocleidomastoid and rectus abdominis muscles due to their common development source. ... Synonym: musculus sternalis, musculus rectus thoracis, sternal muscle. ... (0 …

musculus sternochondroscapularis
Synonym for sternochondroscapular muscle ... <anatomy> An occasional muscle arising from the manubrium of the sternum and first costal cartilage and passing lateralward and backward to be inserted into the upper border of the scapula. ... Synonym: musculus sternochondroscapularis. ... (05 Mar 2000) ...

musculus sternoclavicularis
Synonym for sternoclavicular muscle ... <anatomy> An occasional muscle, a slip from the subclavius muscle, passing from the upper part of the sternum to the clavicle beneath the pectoralis major muscle. ... Synonym: musculus sternoclavicularis. ... (05 Mar 2000) ...

musculus sternocleidomastoideus
Synonym for sternocleidomastoid ... <anatomy, muscle> This is one of two muscles located on the front of the neckwhich serve to turn the head from side to side. ... Origin, sternum and clavicle; insertion, mastoid process; action, bends the head to the same side, rotates the head, raises the chin to the opposite side, together bend head forward …

musculus sternofascialis
An occasional muscular slip arising from the manubrium of the sternum and inserted into the fascia of the neck. ... (05 Mar 2000) ...

musculus sternohyoideus
Synonym for sternohyoid ... 1. <anatomy> Of or pertaining to the sternum and the hyoid bone or cartilage. ... 2. <muscle> Origin, posterior surface of manubrium sterni and first costal cartilage; insertion, body of hyoid bone; action, depresses hyoid bone; nerve supply, upper cervical via spinal nerves(ansa cervicalis). ... Synonym: muscul …

musculus sternothyroideus
Synonym for sternothyroid ... <anatomy> Of or pertaining to the sternum and the thyroid cartilage. ... <muscle> Origin, posterior surface of manubrium of sternum and first or second costal cartilage; insertion, oblique line of thyroid cartilage; action, depresses larynx; nerve supply, upper cervical via spinal nerves (ansa cervicalis). …

musculus styloauricularis
Synonym for styloauricular muscle ... <anatomy> An occasional small muscle extending from the root of the styloid process to the cartilage of the meatus of the ear. ... Synonym: musculus styloauricularis. ... (05 Mar 2000) ...

musculus styloglossus
Synonym for styloglossus muscle ... <anatomy> Action, retracts tongue; origin, lower end of styloid process; insertion, side and undersurface of tongue; nerve supply, hypoglossal. ... Synonym: musculus styloglossus. ... (05 Mar 2000) ...

musculus stylohyoideus
Synonym for stylohyoid muscle ... <anatomy, muscle> Origin, styloid process of temporal bone; insertion, hyoid bone by two slips on either side of intermediate tendon of digastric; action, elevates hyoid bone; nerve supply, facial. ... Synonym: musculus stylohyoideus. ... (05 Mar 2000) ...

musculus stylolaryngeus
That part of the stylopharyngeus which is inserted into the thyroid cartilage. ... (05 Mar 2000) ...

musculus stylopharyngeus
Synonym for stylopharyngeus ... <anatomy, muscle> Origin, root of styloid process; insertion, thyroid cartilage and wall of pharynx (becomes part of the longitudinal coat): action, elevates pharynx and larynx; nerve supply, glossopharyngeal. ... Synonym: musculus stylopharyngeus, stylopharyngeal muscle. ... (05 Mar 2000) ...

musculus subclavius
Synonym for subclavius ... <anatomy, muscle> Origin, first costal cartilage; insertion, inferior surface of acromial end of clavicle; action, fixes clavicle or elevates first rib; nerve supply, subclavian from brachial plexus. ... Synonym: musculus subclavius, subclavian muscle. ... (05 Mar 2000) ...

musculus subcostalis
Synonym for subcostal muscle ... <anatomy> One of a number of inconstant muscles of the posterolateral thoracic wall having the same direction as the internal intercostal muscles but extending across (deep to) one or more ribs. ... Synonym: musculus subcostalis, musculus infracostalis. ... (05 Mar 2000) ...

musculus subcutaneus colli
Synonym for platysma ... <anatomy, muscle> Origin, subcutaneous layer and fascia covering pectoralis major and deltoid at level of first or second rib; insertion, lower border of mandible, risorius and platysma of opposite side; action, depresses lower lip, forms ridges in skin of neck and upper chest when jaws are 'clenched', denoting stress, …

musculus subscapularis
Synonym for subscapularis ... <anatomy, muscle> Origin, subscapular fossa; insertion, lesser tuberosity of humerus; action, rotates arm medially; nerve supply, upper and lower subscapular from posterior cord of brachial plexus (fifth and sixth cervical spinal nerves). ... Synonym: musculus subscapularis, subscapular muscle. ... (05 Mar 2000) ...

musculus supinator
Synonym for supinator ... <anatomy, muscle> Origin, lateral epicondyle of humerus radial collateral and anular ligaments, and supinator ridge of ulna; insertion, anterior and lateral surface of radius; action, supinates the forearm; nerve supply, radial (posterior interosseous). ... Synonym: musculus supinator, musculus supinator radii brevis.< …

musculus supinator longus
An obsolete and inaccurate term for brachioradialis muscle. ... (05 Mar 2000) ...

musculus supinator radii brevis
Synonym for supinator ... <anatomy, muscle> Origin, lateral epicondyle of humerus radial collateral and anular ligaments, and supinator ridge of ulna; insertion, anterior and lateral surface of radius; action, supinates the forearm; nerve supply, radial (posterior interosseous). ... Synonym: musculus supinator, musculus supinator radii brevis.< …

musculus supraclavicularis
Synonym for supraclavicular muscle ... <anatomy> An anomalous muscular slip running from the upper edge of the manubrium of the sternum lateralward to about the middle of the upper surface of the clavicle. ... Synonym: musculus supraclavicularis. ... (05 Mar 2000) ...

musculus supraspinalis
Synonym for supraspinalis muscle ... <anatomy> One of a number of muscular bands passing between the tips of the spinous processes of the cervical vertebrae. ... Synonym: musculus supraspinalis. ... (05 Mar 2000) ...

musculus supraspinatus
Synonym for supraspinatus ... <anatomy, muscle> Origin, supraspinous fossa of scapula; insertion, greater tuberosity of humerus; action, initiates abduction of arm; nerve supply, suprascapular from fifth and sixth cervical. ... Synonym: musculus supraspinatus, supraspinous muscle. ... (05 Mar 2000) ...

musculus suspensorius duodeni
Synonym for suspensory muscle of duodenum ... A broad flat band of smooth muscle and fibrous tissue attached to the right crus of the diaphragm and to the duodenum at its junction with the jejunum. ... Synonym: musculus suspensorius duodeni, Treitz's ligament, Treitz's muscle. ... (05 Mar 2000) ...

musculus tarsalis inferior
Synonym for inferior tarsal muscle ... <anatomy> Poorly developed smooth muscle in the lower eyelid that acts to widen the palpebral fissure. ... Synonym: musculus tarsalis inferior. ... (05 Mar 2000) ...

musculus tarsalis superior
Synonym for superior tarsal muscle ... <anatomy> A well defined layer of smooth muscle that extends from the aponeurosis of the musculus levator palpebrae superioris to the superior tarsus; it is innervated by sympathetic nerves and acts to hold the upper lid in an elevated position; its paralysis in Horner's syndrome result in ptosis. ... Syno …

musculus temporalis
Synonym for temporalis ... <anatomy, muscle> Origin, temporal fossa; insertion, coronoid process of mandible and anterior border of ramus; action elevates mandible (closes jaw); its posterior, nearly horizontally-oriented fibres are the primary retractors of the protruded mandible. Nerve supply, deep temporal branches of mandibular division of …

musculus temporoparietalis
Synonym for temporoparietalis muscle ... <anatomy> The part of epicranius muscle that arises from the lateral part of the epicranial aponeurosis and inserts in the cartilage of the auricle. ... Synonym: musculus temporoparietalis, temporoparietal muscle. ... (05 Mar 2000) ...

musculus tensor fasciae femoris
Synonym for tensor fasciae latae ... <anatomy, muscle> Origin, anterior superior spine and adjacent lateral surface of the ilium; insertion, iliotibial band of fascia lata; action, tenses fascia lata; flexes, abducts and medially rotates thigh; nerve supply, superior gluteal. ... Synonym: musculus tensor fasciae latae, musculus tensor fasciae f …

musculus tensor fasciae latae
Synonym for tensor fasciae latae ... <anatomy, muscle> Origin, anterior superior spine and adjacent lateral surface of the ilium; insertion, iliotibial band of fascia lata; action, tenses fascia lata; flexes, abducts and medially rotates thigh; nerve supply, superior gluteal. ... Synonym: musculus tensor fasciae latae, musculus tensor fasciae f …

musculus tensor palati
Synonym for tensor veli palati muscle ... <anatomy> Tensor muscle of soft palate, musculus tensor palati; musculus palatosalpingeus; musculus sphenosalpingostaphylinus; dilator tubae; origin, scaphoid fossa of sphenoid, cartilaginous and membranous part of auditory (eustachian) tube and spine of sphenoid; insertion, posterior border of hard pa …

musculus tensor tarsi
Synonym for lacrimal part of orbicularis oculi muscle ... <anatomy> See: orbicularis oculi muscle. ... Synonym: pars lacrimalis musculi orbicularis oculi, Duverney's muscle, Horner's muscle, musculus tensor tarsi. ... (05 Mar 2000) ...

musculus tensor tympani
Synonym for tensor tympani ... <anatomy, muscle> Origin, the cartilaginous part of the auditory (eustachian) tube and the walls of its hemi-canal just above the bony portion of the auditory tube; insertion, handle of malleus; action, draws the handle of the malleus medialward tensing the tympanic membrane to protect it from excessive vibration …

musculus tensor veli palatini
Synonym for tensor veli palati muscle ... <anatomy> Tensor muscle of soft palate, musculus tensor palati; musculus palatosalpingeus; musculus sphenosalpingostaphylinus; dilator tubae; origin, scaphoid fossa of sphenoid, cartilaginous and membranous part of auditory (eustachian) tube and spine of sphenoid; insertion, posterior border of hard pa …

musculus teres major
Synonym for teres major ... <anatomy, muscle> Origin, inferior angle and lower third of border of scapula; insertion, medial border of intertubercular groove of humerus; action, adducts and extends arm and rotates it medially; nerve supply, lower subscapular from posterior cord of brachial plexus (fifth and sixth cervical spinal nerves). ... Sy …

musculus teres minor
Synonym for teres minor ... <anatomy, muscle> Origin, upper two-thirds of the lateral border of scapula; insertion, lower facet of greater tuberosity of humerus; action, adducts arm and rotates it laterally; nerve supply, axillary (fifth and sixth cervical spinal nerves). ... Synonym: musculus teres minor. ... (05 Mar 2000) ...

musculus tetragonus
Synonym for platysma ... <anatomy, muscle> Origin, subcutaneous layer and fascia covering pectoralis major and deltoid at level of first or second rib; insertion, lower border of mandible, risorius and platysma of opposite side; action, depresses lower lip, forms ridges in skin of neck and upper chest when jaws are 'clenched', denoting stress, …

musculus thyroarytenoideus
Synonym for thyroarytenoid ... <anatomy> Of or pertaining to both the thyroid and arytenoid cartilages of the larynx. ... <muscle> Origin, inner surface of thyroid cartilage; insertion, muscular process and outer surface of arytenoid; action, decreases tension on (relaxes) vocal cords lowering the pitch of the voice tone; nerve supply, re …

musculus thyroarytenoideus externus
Synonym for thyroarytenoid ... <anatomy> Of or pertaining to both the thyroid and arytenoid cartilages of the larynx. ... <muscle> Origin, inner surface of thyroid cartilage; insertion, muscular process and outer surface of arytenoid; action, decreases tension on (relaxes) vocal cords lowering the pitch of the voice tone; nerve supply, re …

musculus thyroarytenoideus internus
Synonym for vocalis ... <anatomy, muscle> Origin, depression between the two laminae of thyroid cartilage; insertion, portions of vocal process of arytenoid; action, shortens and relaxes vocal cords; nerve supply, recurrent laryngeal; a number of the deeper and finer fibres of the thyroaryteroid muscle attached directly to the outer side of th …

musculus thyroepiglotticus
Synonym for thyroepiglottic muscle ... <anatomy, muscle> Origin, inner surface of thyroid cartilage in common with musculus thyroarytenoideus; insertion, aryepiglottic fold and margin of epiglottis; action, depresses base of epiglottis; nerve supply, recurrent laryngeal. ... Synonym: musculus thyroepiglotticus, depressor muscle of epiglottis, v …

musculus thyrohyoideus
Synonym for thyrohyoid muscle ... <anatomy> Apparently a continuation of the sternothyroid; origin, oblique line of thyroid cartilage; insertion, body of hyoid bone; action, approximates hyoid bone to the larynx; nerve supply, upper cervical spinal nerves carried by hypoglossal. ... Synonym: musculus thyrohyoideus. ... (05 Mar 2000) ...

musculus thyropharyngeus
See: inferior constrictor muscle of pharynx. ... (05 Mar 2000) ...

musculus tibialis anterior
Synonym for tibialis anterior ... <anatomy, muscle> Origin, upper two-thirds of lateral surface of tibia, interosseous membrane, and intermuscular septum; insertion, medial cuneiform and base of first metatarsal; action, dorsiflexion and inversion of foot; nerve supply, deep peroneal. ... Synonym: musculus tibialis anterior, anterior tibial mus …

musculus tibialis anticus
Synonym for tibialis anterior ... <anatomy, muscle> Origin, upper two-thirds of lateral surface of tibia, interosseous membrane, and intermuscular septum; insertion, medial cuneiform and base of first metatarsal; action, dorsiflexion and inversion of foot; nerve supply, deep peroneal. ... Synonym: musculus tibialis anterior, anterior tibial mus …

musculus tibialis gracilis
Synonym for plantaris ... <anatomy, muscle> Origin, lateral supracondylar ridge; insertion, medial margin of tendo achillis and deep fascia of ankle; action, traditionally described as plantar flexion of foot; many investigators now believe the plantaris muscle to be primarily a proprioceptive organ; nerve supply, tibial nerve. ... Synonym: mus …

musculus tibialis posterior
Synonym for tibialis posterior ... <anatomy, muscle> Origin, soleal line and posterior surface of tibia, the head and shaft of the fibula between the medial crest and interosseous border, and the posterior surface of interosseous membrane; insertion, navicular, three cuneiform, cuboid, and second, third, and fourth metatarsal bones; action, pl …

musculus tibialis posticus
Synonym for tibialis posterior ... <anatomy, muscle> Origin, soleal line and posterior surface of tibia, the head and shaft of the fibula between the medial crest and interosseous border, and the posterior surface of interosseous membrane; insertion, navicular, three cuneiform, cuboid, and second, third, and fourth metatarsal bones; action, pl …

musculus tibialis secundus
An inconstant muscle, of small size, arising from the back of the tibia and inserted into the articular capsule of the ankle joint. ... Synonym: second tibial muscle. ... (05 Mar 2000) ...

musculus tibiofascialis anterior
Separate fibres of the tibialis anterior inserted into the fascia of the dorsum of the foot. ... (05 Mar 2000) ...

musculus trachealis
Synonym for trachealis muscle ... <anatomy> The band of smooth muscular fibres in the fibrous membrane connecting posteriorly the ends of the tracheal rings. ... Synonym: musculus trachealis. ... (05 Mar 2000) ...

musculus tracheloclavicularis
Synonym for tracheloclavicular muscle ... <anatomy> An anomalous muscle occasionally arising from the cervical vertebrae and inserted into the lateral end of the clavicle. ... Synonym: musculus tracheloclavicularis. ... (05 Mar 2000) ...

musculus trachelomastoideus
Synonym for longissimus capitis ... <anatomy, muscle> Origin, from transverse processes of upper thoracic and transverse and articular processes of lower and middle cervical vertebrae; insertion, into mastoid process; action, keeps head erect, draws it backward or to one side; nerve supply, dorsal primary rami of cervical spinal nerves. ... Syn …

musculus tragicus
Synonym for tragicus muscle ... <anatomy> A band of vertical muscular fibres on the outer surface of the tragus of the ear. ... Synonym: musculus tragicus, muscle of tragus, Valsalva's muscle. ... (05 Mar 2000) ...

musculus transversalis abdominis
Synonym for transversus abdominis ... <anatomy, muscle> Origin, seventh to twelfth costal cartilages, lumbar fascia, iliac crest, and inguinal ligament; insertion, xiphoid cartilage and linea alba and, through the conjoint tendon, pubic tubercle and pecten; action, compresses abdominal contents; nerve supply, lower thoracic. ... Synonym: muscul …

musculus transversalis capitis
Synonym for longissimus capitis ... <anatomy, muscle> Origin, from transverse processes of upper thoracic and transverse and articular processes of lower and middle cervical vertebrae; insertion, into mastoid process; action, keeps head erect, draws it backward or to one side; nerve supply, dorsal primary rami of cervical spinal nerves. ... Syn …

musculus transversalis cervicis
Synonym for longissimus cervicis ... <anatomy, muscle> Origin, transverse processes of upper thoracic vertebrae; insertion, transverse processes of middle and upper cervical vertebrae; action, extends cervical vertebrae; nerve supply, dorsal primary rami of lower cervical and upper thoracic spinal nerves. ... Synonym: musculus longissimus cervi …