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

semilente insulin
Synonym for prompt insulin zinc suspension ... Sterile suspension of insulin in buffered water for injection, modified by the addition of zinc chloride such that the solid phase of the suspension is amorphous; it contains 40 or 80 units per ml; the duration of action is equivalent to that of insulin injection. ... Synonym: amorphous insulin zinc susp …

semilunar bone
An obsolete term for lunate bone. ... (05 Mar 2000) ...

semilunar cartilage
One of the articular menisci of the knee joint. ... See: lateral meniscus, medial meniscus. ... (05 Mar 2000) ...

semilunar conjunctival fold
Synonym for plica semilunaris conjunctivae ... The semilunar fold formed by the palpebral conjunctiva at the medial angle of the eye, a fold of the conjunctival mucous membrane found in many animals; normally partially hidden in the medial canthus of the eye when at rest, it may be extended to cover part or all of the cornea in a winking-like action …

semilunar cusp
One of the three semilunar segments serving as the three cusps of a valve preventing regurgitation at the beginning of the aorta; a similar valve guards the entrance of the pulmonary trunk; the segments are named, respectively, anterior, right, and left in the pulmonary valve, and posterior, right, and left in the aortic valve. ... (05 Mar 2000) ...

semilunar fascia
Synonym for bicipital aponeurosis ... Aponeurosis bicipitalis, radiating fibres from the tendon of insertion of the biceps which form a triangular band passing obliquely across the hollow of the elbow to the ulnar side and becoming merged into the deep fascia of the forearm. Formerly called 'grace Dieu' fascia, it serves to protect the brachial arte …

semilunar fasciculus
A compact bundle composed of descending branches of posterior root fibres located near the border between the fasciculi gracilis and cuneatus of the cervical and thoracic spinal cord; it corresponds to the septomarginal fasciculus, Hoche's tract, or oval area of Flechsig in the lumbar, and to the triangle of Philippe-Gombault in the sacral spinal s …

semilunar fibrocartilage
See: lateral meniscus, medial meniscus. ... Stratiform fibrocartilage, a layer of fibrocartilage in the bottom of a groove in a bone through which a tendon runs. ... (05 Mar 2000) ...

semilunar fold
The curved fold connecting the palatoglossal arch and palatopharyngeal arch above the supratonsillar fossa; it always contains lymphoid tissue. ... Synonym: plica semilunaris. ... (05 Mar 2000) ...

semilunar fold of colon
Synonym for plica semilunaris of colon ... One of the folds of the wall of the colon between sacculations. ... Synonym: plica sigmoidea, semilunar fold of colon. ... (05 Mar 2000) ...

semilunar hiatus
A deep, narrow groove in the lateral wall of the middle meatus of the nasal cavity, into which the maxillary sinus, the frontonasal duct, and the middle ethmoid cells open. ... Synonym: hiatus semilunaris, hiatus ethmoidalis. ... (05 Mar 2000) ...

semilunar line
Synonym for linea semilunaris ... The slight groove in the external abdominal wall parallel to the lateral edge of the rectus sheath. ... Synonym: semilunar line, Spigelius' line. ... (05 Mar 2000) ...

semilunar notch
Synonym for anterior cerebellar notch ... A wide, shallow notch on the anterior surface of the cerebellum occupied laterally by the superior cerebellar peduncles and the inferior quadrigeminal bodies medially. ... Synonym: anterior notch of cerebellum, incisura cerebelli anterior, semilunar notch. ... (05 Mar 2000) ...

semilunar nucleus of Flechsig
Synonym for arcuate nucleus of thalamus ... The small ventral region of the ventral posteromedial nucleus of thalamus in which the fibres of the gustatory lemniscus and secondary trigeminal tracts terminate; it projects to the lower part of the postcentral gyrus of the cerebral cortex. ... Synonym: arcuate nucleus, nucleus arcuatus thalami, nucleus a …

semilunar valve
<anatomy, cardiology> Refers to a type of valve, aortic or pulmonic valves. ... (27 Sep 1997) ...

semilunare
An obsolete term for lunate bone. ... (05 Mar 2000) ...

semiluxation
Synonym for subluxation ... The abnormal movement of one of the bones that comprise a joint. Not a true dislocation. A partial dislocation. An example of this would be radial head subluxation in the elbow (nursemaids elbow). Severe arthritis with advanced deformation of the joint space can result in subluxation. ... (27 Sep 1997) ...

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 is flexed; and contributes to …

semimembranosus reflex
Contraction of these muscles by tapping in the region of the tuberosity of the tibia. ... (05 Mar 2000) ...

semimembranous
Consisting partly of membrane; denoting the semimembranosus muscle. ... (05 Mar 2000) ...

seminal
A seed. ... 1. Pertaining to, containing, or consisting of, seed or semen; as, the seminal fluid. ... 2. Contained in seed; holding the relation of seed, source, or first principle; holding the first place in a series of developed results or consequents; germinal; radical; primary; original; as, seminal principles of generation; seminal virtue. 'The …

seminal capsule
Synonym for seminal vesicle ... <anatomy> The paired glands at the base of the bladder that produce seminal fluid and fructose. ... (09 Oct 1997) ...

seminal colliculus
An elevated portion of the urethral crest upon which open the two ejaculatory ducts and the prostatic utricle. ... Synonym: colliculus seminalis, caput gallinaginis, colliculus urethralis, seminal hillock, verumontanum. ... (05 Mar 2000) ...

seminal duct
Any one of the duct's conveying semen from the epididymis to the urethra, ductus deferens, or ejaculatory duct. ... Synonym: gonaduct. ... (05 Mar 2000) ...

seminal fluid
Synonym for semen ... <biology> Ejaculate. The fluid released at orgasm which contains sperm and secretions from the prostate gland. ... (27 Sep 1997) ...

seminal gland
Synonym for seminal vesicle ... <anatomy> The paired glands at the base of the bladder that produce seminal fluid and fructose. ... (09 Oct 1997) ...

seminal granule
One of the minute granular bodies present in the semen. ... (05 Mar 2000) ...

seminal hillock
Synonym for seminal colliculus ... An elevated portion of the urethral crest upon which open the two ejaculatory ducts and the prostatic utricle. ... Synonym: colliculus seminalis, caput gallinaginis, colliculus urethralis, seminal hillock, verumontanum. ... (05 Mar 2000) ...

seminal lake
Synonym for lacus seminalis ... The vault of the vagina after insemination. ... Synonym: seminal lake. ... (05 Mar 2000) ...

seminal vesical cyst
A cyst, usually congenital, of the seminal vesicle. ... (05 Mar 2000) ...

seminal vesicle
<anatomy> The paired glands at the base of the bladder that produce seminal fluid and fructose. ... (09 Oct 1997) ...

seminal vesicles
Two structures about 5 cm long behind the bladder and above the prostate gland which contribute fluid to the ejaculate. ... (12 Dec 1998) ...

seminary
Origin: L. Seminarium, fr. Seminarius belonging to seed, fr. Semon, seminis, seed. See Seminal. ... 1. A piece of ground where seed is sown for producing plants for transplantation; a nursery; a seed plat. 'But if you draw them [seedling] only for the thinning of your seminary, prick them into some empty beds.' (Evelyn) ... 2. Hence, the place or ori …

seminiferous epithelium
Specialised epithelium lining the seminiferous tubules containing developing and mature spermatozoa and sertoli cells. ... (12 Dec 1998) ...

seminiferous tubule
<anatomy> In the testicles, the network of tubes where sperm cells are formed. ... (09 Oct 1997) ...

seminiferous tubule dysgenesis
A disorder in which the seminiferous tubules exhibit an abnormal cytoarchitecture and extensive hyalinization; the testes are small, and few spermatozoa are formed; the body habitus may be eunuchoid, and gynaecomastia may be present; urinary gonadotropin output is usually high, and the incidence of mental deficiency and illness increased; sex chrom …

seminiferous tubules
The canals through which the testicular spermatozoa are conveyed to the rete testis. ... (12 Dec 1998) ...

seminoma
<oncology, tumour> A cancerous neoplasm, or abnormal growth, of the testicle which is thought to arise from primordial germ line cells while the individual is still an embryo and the testicle has not yet been sexually differentiated from the generic gonad. ... (09 Oct 1997) ...

seminomatous
Relating to a seminoma. ... (05 Mar 2000) ...

seminormal
Denoting a solution one-half the strength of a normal solution (0.5 n). ... (05 Mar 2000) ...

seminuria
Synonym for semenuria ... <urology> The excretion of urine containing semen. ... Synonym: seminuria, spermaturia. ... (05 Mar 2000) ...

semiologic
1. The general philosophical theory of signs and symbols in communication, having three branches: syntactics, semantics, and pragmatics. ... 2. Obsolete term for symptomatic. ... (05 Mar 2000) ...

semiopathic
Denoting the disordered use of symbols. ... Origin: G. Semeion, sign, + pathos, disease ... (05 Mar 2000) ...

semiorbicular
Synonym for semicircular ... 1. Forming a half circle or an incomplete circle. ... 2. <anatomy> Semicircular canals, certain canals of the inner ear. ... Synonym: semiorbicular. ... (05 Mar 2000) ...

semiosis
<psychology> The mental or symbolic process in which something (e.g., word, symbol, nonverbal cue) functions as a sign for the organism. ... Origin: G. Semeiosis, fr. Semeion, sign ... (05 Mar 2000) ...

semiotics
1. The general philosophical theory of signs and symbols in communication, having three branches: syntactics, semantics, and pragmatics. ... 2. Obsolete term for symptomatology. ... Origin: see semiotic ... (05 Mar 2000) ...

semioval centre
Synonym for centrum semiovale ... The great mass of white matter composing the interior of the cerebral hemisphere; the name refers to the general shape of this white core in horizontal sections of the hemisphere. ... Synonym: centrum medullare, centrum ovale, medullary centre, semioval centre, Vicq d'Azyr's centrum semiovale, Vieussens' centrum. ... …

semipermeable
Freely permeable to water (or other solvent) but relatively impermeable to solutes. Depending on the context, it has been used to imply impermeability to all solutes except very small uncharged molecules (e.g., a cell membrane), or merely impermeability to very large molecules such as proteins (e.g., a capillary membrane). ... (05 Mar 2000) ...

semipermeable membrane
<biology, physiology> A membrane that is selectively permeable to only one (or a few) solutes. ... The potential developed across a membrane permeable to only one ionic species is given by the Nernst equation for the species: this is the basis for the operation of ion selective electrodes. ... (18 Nov 1997) ...

semiplacenta
The type of placenta in ruminants, horse and pig, in which the maternal and foetal placentas do not grow together but can be easily separated without tearing; an apposed or contact placenta. ... (05 Mar 2000) ...

semipolar bond
A bond in which the two electrons shared by a pair of atoms belonged originally to only one of the atoms; often represented by a small arrow pointing toward the electron receiver; e.g., nitric acid, O(OH)N&rarr;O; phosphoric acid, (OH)3P&rarr;O. ... Synonym: coordinate covalent bond. ... (05 Mar 2000) ...

semipronation
The attitude or assumption of a partly prone position, as in Sims' position. ... (05 Mar 2000) ...

semiprone
Denoting semipronation. ... (05 Mar 2000) ...

semiprone position
Synonym for Sims' position ... A position to facilitate a vaginal examination, the patient lying on the side with the under arm behind the back, the thighs flexed, the upper one more than the lower. ... Synonym: English position, lateral recumbent position, semiprone position. ... (05 Mar 2000) ...

semiquinone
A free radical resulting from the removal of one hydrogen atom with its electron during the process of dehydrogenation of a hydroquinone to quinone or similar compound (e.g., flavin mononucleotide). ... (05 Mar 2000) ...

Semisch, Edwin
<person> German ophthalmologist, 1833-1909. ... See: Semisch's section, Semisch's ulcer. ... (05 Mar 2000) ...

Semisch's section
Procedure of transfixing the cornea beneath an ulcer and then cutting from within outward through the base. ... (05 Mar 2000) ...

Semisch's ulcer
A form of serpiginous keratitis, frequently accompanied by hypopyon. ... (05 Mar 2000) ...

semispinal
Half spinal; denoting muscles attached in part to the spinous processes of the vertebrae. ... (05 Mar 2000) ...

semispinal muscle
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) ...

semispinal muscle of head
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 …

semispinal muscle of neck
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 …

semispinal muscle of thorax
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 …

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. ... Synonym: musculus semispinalis …

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 nerves. ... Synonym: musculus semispinalis ce …

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) ...

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: musculus semispinalis thoracis, musculus s …

Semisulcospina
A genus of operculate snails (family Pleuroceriidae, subclass Prosobranchiata). An oriental form, Semisulcospina libertina, is the first intermediate host of a number of trematodes, including Paragonimus westermani. ... Origin: semi-+ L. Sulcus, a furrow + spina, thorn, spine ... (05 Mar 2000) ...

semisulcus
A slight groove on the edge of a bone or other structure, which, uniting with a similar groove on the corresponding adjoining structure, forms a complete sulcus. ... (05 Mar 2000) ...

semisulfur mustard
Synonym for hemisulfur mustard ... 2-(2-chloroethylthio)ethanol ... An antineoplastic agent. ... Synonym: mustard chlorohydrin, semisulfur mustard. ... (05 Mar 2000) ...

semisupination
The attitude or assumption of a partly supine position. ... (05 Mar 2000) ...

semisupine
Denoting semisupination. ... (05 Mar 2000) ...

semisynthetic
<chemistry> Produced by chemical manipulation of naturally occurring substances. ... (18 Nov 1997) ...

semisystematic name
A name of a chemical of which at least one part is systematic and at least one part is not (i.e., is trivial). For example, calciferol includes the -ol suffix denoting an -OH radical, while calcifer-, which has no systematic meaning, is used only in this word. Cortisone contains the -one suffix, indicating a ketone group, but the rest of the term d …

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) ...

semitendinous
Composed in part of tendon; denoting the semitendinosus muscle. ... Synonym: semitendinosus. ... Origin: L. Semitendinosus ... (05 Mar 2000) ...

semitic
Of or pertaining to Shem or his descendants; belonging to that division of the Caucasian race which includes the Arabs, Jews, and related races. ... Alternative forms: Shemitic] Semitic language, a name used to designate a group of Asiatic and African languages, some living and some dead, namely: Hebrew and Phoenician, Aramaic, Assyrian, Arabic, Eth …

semitrivial name
Synonym for semisystematic name ... A name of a chemical of which at least one part is systematic and at least one part is not (i.e., is trivial). For example, calciferol includes the -ol suffix denoting an -OH radical, while calcifer-, which has no systematic meaning, is used only in this word. Cortisone contains the -one suffix, indicating a keton …

semivalent
Denoting the ability to form a one-electron bond. ... (05 Mar 2000) ...

semivertical heart
Loosely descriptive of the heart's electrical axis when this is directed at approximately +60°. As cardiac position, recognised in the electrocardiogram when the QRS complex in lead aVF resembles V6 while that in aVL is small algebraically or absolutely. ... (05 Mar 2000) ...

Semliki forest virus
<virology> Enveloped virus of the alphavirus group of Togaviridae. First isolated from mosquitoes in the Semliki Forest in Uganda, not known to cause any illness. The synthesis and export of its three spike glycoproteins, via the endoplasmic reticulum and Golgi complex, have been used as a model for the synthesis and export of plasma membrane …

Semon-Hering theory
Synonym for mnaemic hypothesis ... The theory that stimuli or irritants leave definite traces (engrams) on the protoplasm of the animal or plant, and when these stimuli are regularly repeated they induce a habit which persists after the stimuli cease; assuming that the germ cells share with the nerve cells in the possession of engrams, acquired habi …

Semon, Richard
<person> German biologist, 1859-1908. ... See: Semon-Hering theory. ... (05 Mar 2000) ...

Semon, Sir Felix
<person> German laryngologist in Britain, 1849-1921. ... See: Semon's law, Gerhardt-Semon law. ... (05 Mar 2000) ...

Semon's law
An obsolete law stating that injury to the recurrent laryngeal nerve results in paralysis of the abductor muscle of the vocal cords before paralysis of the adductor muscles. ... (05 Mar 2000) ...

Semple vaccine
A modification of the original (Pasteur) rabies vaccine, formerly widely used in the U.S., prepared from rabbit nerve tissue, inactivated with phenol and administered in 14 to 21 daily injections; has variable potency and is associated with a high incidence of postvaccinal demyelination. ... (05 Mar 2000) ...

Semple, Sir David
<person> English physician, 1856-1937. ... See: Semple vaccine. ... (05 Mar 2000) ...

semustine
<chemical> 1-(2-chloroethyl)-3-(4-methylcyclohexyl)-1-nitrosourea. 4-methyl derivative of lomustine (ccnu). An antineoplastic agent which functions as an alkylating agent. ... Pharmacological action: antineoplastic agent, alkylating. ... Chemical name: Urea, N-(2-chloroethyl)-N'-(4-methylcyclohexyl)-N-nitroso- ... (12 Dec 1998) ...

Sendai virus
<virology> Parainfluenza virus type 1 (Paramyxoviridae). Can cause fatal pneumonia in mice and may cause respiratory disease in humans. The ability of ultraviolet inactivated virus to fuse mammalian cells has been extensively used in the study of heterokaryons and hybrid cell lines. ... (18 Nov 1997) ...

Senear-Usher disease
Synonym for pemphigus erythematosus ... An eruption involving sun-exposed skin, especially the face; the lesions are scaling erythematous macules and blebs, combining the clinical features of both lupus erythematosus and pemphigus vulgaris; bullae are subcorneal; probably a variant of pemphigus foliaceus. ... Synonym: Senear-Usher disease, Senear-Ush …

Senear-Usher syndrome
Synonym for pemphigus erythematosus ... An eruption involving sun-exposed skin, especially the face; the lesions are scaling erythematous macules and blebs, combining the clinical features of both lupus erythematosus and pemphigus vulgaris; bullae are subcorneal; probably a variant of pemphigus foliaceus. ... Synonym: Senear-Usher disease, Senear-Ush …

Senear, Francis
<person> U.S. Dermatologist, 1889-1958. ... See: Senear-Usher disease, Senear-Usher syndrome. ... (05 Mar 2000) ...

senecas
<ethnology> A tribe of Indians who formerly inhabited a part of Western new York. This tribe was the most numerous and most warlike of the Five Nations. ... <botany> Seneca grass, the rootstock of an American species of milkworth (Polygala Senega) having an aromatic but bitter taste. It is often used medicinally as an expectorant and diu …

senecioic acid
(CH3)2C==CH-COOH; 3-Methyl-2-butenoic acid; 3,3-dimethylacrylic acid; methylcrotonic acid;a polymer precursor and a precursor of isoprenoid and terpene compounds; the acid component of binapacryl in which it is esterified with 4,6-dinitro-2-(1-methylpropyl)phenol; the coenzyme A derivative is an intermediate in l-leucine degradation; used as a fung …

seneciosis
Liver degeneration and necrosis caused by ingestion of plants of the genus Senecio, such as ragwort and groundsel; similar hepatotoxic properties have been observed after ingestion of some kinds of Crotalaria and Heliotropium. ... (05 Mar 2000) ...

senegal
A republic in western africa, southwest of mauritania and east of mali. Its capital is dakar. The first settlements were by the portuguese in the 15th century and the french in the 17th century, with the coastal region becoming the object of much rivalry and conflict between the two until french possession was recognised in 1814. Senegal became ind …

senegal gum
The gum of Acacia senegal. ... See: acacia. ... (05 Mar 2000) ...

senescence
The state of being old. ... Origin: L. Senesco, to grow old, fr. Senex, old ... Dental senescence, that condition of the teeth and associated structures in which there is deterioration due to normal or premature aging processes. ... (05 Mar 2000) ...

senescent
Growing old. ... (05 Mar 2000) ...

senescent cell antigen
<immunology> An antigen (62 kD) that appears on the surface of senescent erythrocytes and is immunologically cross reactive with isolated Band III protein. Seems to be recognised by an autoantibody and the immunoglobulin coated erythrocyte is then removed from circulation by cells such as Kuppfer cells of the liver that have Fc receptors. Int …