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


archaic-paralogical thinking
prelogical thinking ...

Archambault, LaSalle
<person> U.S. Neurologist, 1879-1940. ... See: Meyer-Archambault loop. ... (05 Mar 2000) ...

archduke
A prince of the imperial family of Austria. ... Formerly this title was assumed by the rulers of Lorraine, Brabant, Austria, etc. It is now appropriated to the descendants of the imperial family of Austria through the make line, all such male descendants being styled archduke, and all such female descendants archduchesses. ... Origin: Pref. Arch- + d …

arched crest
Synonym for arcuate crest of arytenoid cartilage ... The ridge on the anterior surface of the arytenoid cartilage that separates the triangular from the oblong fovea. ... Synonym: crista arcuata cartilaginis arytenoideae, arched crest, arcuate crest. ... (05 Mar 2000) ...

arched root
<botany> Roots produced on the plant stems in a position above the normal position of roots, which serve to brace the plant during and following periods of prolonged inundation with water. ... (09 Oct 1997) ...

archegonium
<plant biology> The structure on the pteridophyte prothallus that produces the sessile female gametes. ... Compare: antheridium. ... (09 Oct 1997) ...

archenteric canal
Invagination of the blastopore into the notochordal process to form a cavity. ... See: neurenteric canal. ... Synonym: notochordal canal. ... (05 Mar 2000) ...

archeocerebellum
Synonym for vestibulocerebellum ... Those regions of the cerebellar cortex whose predominant afferent fibres arise from the ganglion vestibulare and the vestibular nuclei; structures included under this term are nodulus, flocculus, ventral parts of the uvula and small ventral parts of the lingula. ... Synonym: archeocerebellum. ... Origin: vestibulo-+ …

archeokinetic
Denoting a low and primitive type of motor nerve mechanism, such as is found in the peripheral and the ganglionic nervous systems. ... Compare: neokinetic, paleokinetic. ... Origin: G. Archaios, ancient, + kinetikos, relating to movement ... (05 Mar 2000) ...

archeology
Synonym for archaeology ... <study> The science or study of antiquities, especially. Prehistoric antiquities, such as the remains of buildings or monuments of an early epoch, inscriptions, implements, and other relics, written manuscripts, etc. ... Origin: Gr.; ancient (fr. Beginning) + discourse, to speak. ... (04 Mar 1998) ...

arches of the foot
See: longitudinal arch of foot, plantar arch. ... (05 Mar 2000) ...

archetype
1. The original pattern or model of a work; or the model from which a thing is made or formed. 'The House of Commons, the archetype of all the representative assemblies which now meet.' (Macaulay) 'Types and shadows of that glorious archetype that was to come into the world.' (South) ... 2. The standard weight or coin by which others are adjusted.
archeus
Synonym for archaeus ... Term first used by Valentine and later by Paracelsus and van Helmont to denote a spirit that presided over and governed bodily processes. ... Synonym: archeus. ... Origin: L. Fr. G. Archaios, chief, leader ... (05 Mar 2000) ...

archform
<dentistry> The shape of the dental arch such as a horseshoe archform or a v-shaped archform, or of an orthodontic wire formed to the shape of that arch. ... (08 Jan 1998) ...

archicerebellum
The small, phylogenetically oldest portion of the cerebellum, also called vestibulocerebellum because its afferents arise from the vestibular ganglion and nuclei; in mammals, it is represented by four subdivisions of the cerebellum: nodulus, uvula vermis, flocculus, and lingula of cerebellum. ... Synonym: archaeocerebellum. ... Origin: archi-+ L. Cer …

archicortex
1. Typically, the phylogenetically older parts of the cerebral cortex. ... 2. More specifically, the cortex forming the hippocampus. ... See: allocortex, cerebral cortex. ... Synonym: archipallium. ... Origin: archi-+ L. Cortex ... (05 Mar 2000) ...

archil
1. A violet dye obtained from several species of lichen (Roccella tinctoria, etc), which grow on maritime rocks in the Canary and Cape Verd Islands, etc. ... 2. The plant from which the dye is obtained. ... Alternative forms: orchal and orchil. ... Origin: OF. Orchel, orcheil, It. Orcella, oricello, or OSp. Orchillo. Cf. Orchil. ... Source: Websters Di …

archipallium
Synonym: archicortex. ... Origin: archi-+ L. Pallium ... (05 Mar 2000) ...

architect
1. A person skilled in the art of building; one who understands architecture, or makes it his occupation to form plans and designs of buildings, and to superintend the artificers employed. ... 2. A contriver, designer, or maker. 'The architects of their own happiness.' (Milton) 'A French woman is a perfect architect in dress.' (Coldsmith) ... Origin: …

architectonics
Synonym for cytoarchitecture ... The specific arrangement of cells in tissue, often used to refer to the arrangement of nerve cells in the brain (cerebral cortex). ... (27 Sep 1997) ...

architectural accessibility
Designs for approaching areas inside or outside facilities. ... (12 Dec 1998) ...

architectural drawings
Drawings of architecture and architectural projects, whether the project was executed or not. ... (12 Dec 1998) ...

architecture
1. The art or science of building; especially, the art of building houses, churches, bridges, and other structures, for the purposes of civil life; often called civil architecture. 'Many other architectures besides Gothic.' (Ruskin) ... 3. Construction, in a more general sense; frame or structure; workmanship. 'The architecture of grasses, plants, a …

architrave
The lower division of an entablature, or that part which rests immediately on the column, especially. In classical architecture. See Column. ... The group of moldings, or other architectural member, above and on both sides of a door or other opening, especially if square in form. ... Origin: F. Architrave, fr. It. Architrave; pref. Archi- + trave bea …

archo-
1. Variant of arch-. ... Origin: G. Arche, origin, beginning ... 2. Obsolete. The rectum. ... See: procto-, recto-. ... Origin: G. Archos, rectum ... (05 Mar 2000) ...

archwire
A device consisting of a wire conforming to the alveolar or dental arch, used as an anchorage in correcting irregularities in the position of the teeth. ... Synonym: arch wire. ... (05 Mar 2000) ...

arciform
Synonym for arcuate ... Curved like a bow. ... (09 Oct 1997) ...

arciform arteries
Synonym for arteriae arcuatae renis ... arcuate arteries of kidney ...

arciform veins of kidney
Synonym for arcuate veins of kidney ... Veins that parallel the arcuate arteries, receive blood from interlobular veins and straight venules, and terminate in interlobar veins. ... Synonym: venae arcuatae renis, arciform veins of kidney. ... (05 Mar 2000) ...

arcon articulator
An articulator with the equivalent condylar guides fixed to the upper member and the hinge axis to the lower member, an instrument that maintains a constant relationship between the occlusal plane and the arcon guides at any position of the upper member, thereby making possible more accurate reproductions of mandibular movements. ... (05 Mar 2000)
arctic
Pertaining to, or situated under, the northern constellation called the Bear; northern; frigid; as, the arctic pole, circle, region, ocean; an arctic expedition, night, temperature. ... The arctic circle is a lesser circle, parallel to the equator, 23 deg 28' from the north pole. This and the antarctic circle are called the polar circles, and betwee …

arctic regions
The arctic ocean and the lands in it and adjacent to it. It includes point barrow, alaska, most of the franklin district in canada, two thirds of greenland, svalbard, franz josef land, lapland, novaya zemlya, and northern siberia. ... (12 Dec 1998) ...

arcturus
<anatomy> A fixed star of the first magnitude in the constellation Bootes. ... Arcturus has sometimes been incorrectly used as the name of the constellation, or even of Ursa Major. 'Canst thou guide Arcturus with his sons [Rev. Ver., 'the Bear with her train']' (Job xxxviii. 32) ... Origin: L. Arcturus, Gr. Bearward, equiv. To; bear + ward, gua …

arcuate
Curved like a bow. ... (09 Oct 1997) ...

arcuate arteries of kidney
Curved arteries at the corticomedullary border, arising from interlobar arteries and giving rise to interlobular arteries. ... Synonym: arteriae arcuatae renis. ... (05 Mar 2000) ...

arcuate artery
<anatomy, artery> Origin, dorsalis pedis; branches, passes laterally dorsal to the bases of the metatarsals, giving rise to the 2nd, 3rd, and 4th dorsal metatarsal arteries at the level of the medial cuneiform bone. ... Synonym: arteria arcuata. ... (05 Mar 2000) ...

arcuate crest
Synonym for arcuate crest of arytenoid cartilage ... The ridge on the anterior surface of the arytenoid cartilage that separates the triangular from the oblong fovea. ... Synonym: crista arcuata cartilaginis arytenoideae, arched crest, arcuate crest. ... (05 Mar 2000) ...

arcuate eminence
A prominence on the anterior surface of the petrous portion of the temporal bone indicating the position of the superior semicircular canal. ... Synonym: eminentia arcuata. ... (05 Mar 2000) ...

arcuate fasciculus
Synonym for superior longitudinal fasciculus ... Long association fibre bundle lateral to the centrum ovale of the cerebral hemisphere, connecting the frontal, occipital, and temporal lobes; the fibres pass from the frontal lobe through the operculum to the posterior end of the lateral sulcus where many fibres radiate into the occipital lobe and oth …

arcuate fibres
Nervous or tendinous fibre's passing in the form of an arch from one part to another. ... See: arcuate fibres of cerebrum, external arcuate fibres, internal arcuate fibres. ... (05 Mar 2000) ...

arcuate fibres of cerebrum
Short association fibres that connect adjacent gyri in the cerebral cortex. ... Synonym: fibrae arcuatae cerebri. ... (05 Mar 2000) ...

arcuate line
An arching or bow-shaped line. ... See: arcuate line of ilium, arcuate line of rectus sheath. ... Synonym: linea arcuata. ... (05 Mar 2000) ...

arcuate line of ilium
The iliac portion of the linea terminalis of the bony pelvis. ... Synonym: linea arcuata ossis ilii. ... (05 Mar 2000) ...

arcuate line of rectus sheath
A crescentic line, not always clearly defined, which marks the lower limit of the posterior layer of the sheath of the rectus abdominis muscle. ... Synonym: linea arcuata vaginae musculi recti abdominis, Douglas' line, linea semicircularis, semicircular line. ... (05 Mar 2000) ...

arcuate nuclei
A variable assembly of small cell groups, probably outlying components of the pontine nuclei, on the ventral and medial aspects of the pyramid in the medulla oblongata. ... Synonym: nuclei arcuati. ... (05 Mar 2000) ...

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 arcuatus, semilunar nucleus of Flechsig, tha …

arcuate popliteal ligament
<anatomy> A broad fibrous band attached above to the lateral condyle of the femur and passing medially and downward, blending with the posterior part of the fibrous capsule of the knee joint, arching over the tendon of the popliteus muscle. ... Synonym: ligamentum popliteum arcuatum, popliteal arch, posterior ligament of knee. ... (05 Mar 2000) …

arcuate pubic ligament
<anatomy> The ligament that arches across the inferior aspect of the pubic symphysis. ... Synonym: ligamentum arcuatum pubis, inferior pubic ligament. ... (05 Mar 2000) ...

arcuate scotoma
A scotoma extending from the blind spot and arching into the nasal field following the lines of retinal nerve fibres. ... (05 Mar 2000) ...

arcuate uterus
A uterus with a depression at the fundus; an incomplete uterus bicornis. ... Synonym: uterus arcuatus. ... (05 Mar 2000) ...

arcuate veins of kidney
Veins that parallel the arcuate arteries, receive blood from interlobular veins and straight venules, and terminate in interlobar veins. ... Synonym: venae arcuatae renis, arciform veins of kidney. ... (05 Mar 2000) ...

arcuate zone
The inner third of the basilar membrane of the cochlear duct extending from the tympanic lip of the osseous spiral lamina to the outer pillar cell of the spiral organ (of Corti). ... Synonym: zona arcuata, zona tecta. ... (05 Mar 2000) ...

arcus
Synonym: arch. ... Origin: L. A bow ... (05 Mar 2000) ...

arcus adiposus
Synonym for arcus cornealis ... An opaque, grayish ring at the periphery of the cornea just within the sclerocorneal junction, of frequent occurrence in the aged; it results from a deposit of fatty granules in, or hyaline degeneration of, the lamellae and cells of the cornea. ... Synonym: anterior embryotoxon, arcus adiposus, arcus juvenilis, arcus l …

arcus alveolaris mandibulae
Synonym for alveolar arch of mandible ... The free margin of the alveolar process of the mandible. ... Synonym: arcus alveolaris mandibulae, limbus alveolaris. ... (05 Mar 2000) ...

arcus alveolaris maxillae
Synonym for alveolar arch of maxilla ... The free border of the alveolar process of the maxilla. ... Synonym: arcus alveolaris maxillae, limbus alveolaris. ... (05 Mar 2000) ...

arcus anterior atlantis
Synonym for anterior arch of atlas ... An arch that connects the lateral masses of the atlas anteriorly and articulates with the anterior articular facet of the dens of the axis. ... Synonym: arcus anterior atlantis. ... (05 Mar 2000) ...

arcus aortae
Synonym for aortic arch ... The curved portion between the ascending and descending parts of the aorta; it begins as a continuation of the ascending aorta posterior to the sternal angle, runs posteriorly and slightly to the left as it passes over the root of the left lung, and becomes the descending aorta as it reaches and begins to course along the …

arcus cartilaginis cricoideae
Synonym for arch of cricoid cartilage ... The narrow part of the cartilage that encircles the air passage anterior to the lamina. ... Synonym: arcus cartilaginis cricoideae. ... (05 Mar 2000) ...

arcus cornealis
An opaque, grayish ring at the periphery of the cornea just within the sclerocorneal junction, of frequent occurrence in the aged; it results from a deposit of fatty granules in, or hyaline degeneration of, the lamellae and cells of the cornea. ... Synonym: anterior embryotoxon, arcus adiposus, arcus juvenilis, arcus lipoides, arcus senilis, geronto …

arcus costalis
Synonym for costal arch ... That portion of the inferior aperture of the thorax formed by the articulated cartilages of the seventh to tenth (false) ribs. ... Synonym: arcus costalis, arcus costarum. ... (05 Mar 2000) ...

arcus costarum
Synonym for costal arch ... That portion of the inferior aperture of the thorax formed by the articulated cartilages of the seventh to tenth (false) ribs. ... Synonym: arcus costalis, arcus costarum. ... (05 Mar 2000) ...

arcus dentalis inferior
Synonym for inferior dental arch ... The teeth supported by the alveolar part of the mandible, whether the 10 deciduous teeth or the 16 permanent teeth. ... Synonym: arcus dentalis inferior, mandibular dentition. ... (05 Mar 2000) ...

arcus dentalis superior
Synonym for superior dental arch ... The teeth supported by the alveolar process of the two maxillae, whether the 10 deciduous teeth or the 16 permanent teeth. ... Synonym: arcus dentalis superior, maxillary dentition. ... (05 Mar 2000) ...

arcus ductus thoracici
See: thoracic duct. ... (05 Mar 2000) ...

arcus glossopalatinus
Synonym for palatoglossal arch ... One of a pair of ridges or folds of mucous membrane passing from the soft palate to the side of the tongue; it encloses the palatoglossus muscle and forms anterior margin of the tonsillar fossa. Also demarcates oral cavity from isthmus of fauces. ... Synonym: arcus palatoglossus, anterior palatine arch, anterior pil …

arcus iliopectineus
Synonym for iliopectineal arch ... A thickened band of fused iliac and psoas fascia passing from the posterior aspect of the inguinal ligament anteriorly across the front of the femoral nerve to attach to the iliopectineal eminence of the hip bone posteriorly. The iliopectinal arch thus forms a septum which subdivides the space deep to the inguinal …

arcus inguinalis
An alternate term for inguinal ligament. ... (05 Mar 2000) ...

arcus juvenilis
Synonym for arcus cornealis ... An opaque, grayish ring at the periphery of the cornea just within the sclerocorneal junction, of frequent occurrence in the aged; it results from a deposit of fatty granules in, or hyaline degeneration of, the lamellae and cells of the cornea. ... Synonym: anterior embryotoxon, arcus adiposus, arcus juvenilis, arcus l …

arcus lipoides
Synonym for arcus cornealis ... An opaque, grayish ring at the periphery of the cornea just within the sclerocorneal junction, of frequent occurrence in the aged; it results from a deposit of fatty granules in, or hyaline degeneration of, the lamellae and cells of the cornea. ... Synonym: anterior embryotoxon, arcus adiposus, arcus juvenilis, arcus l …

arcus lumbocostalis lateralis
Synonym for lateral arcuate ligament ... <anatomy> One of Haller's arches; a thickening of the fascia of the quadratus lumborum muscle between the transverse process of the first lumbar vertebra and the twelfth rib on either side that gives attachment to a portion of the diaphragm. ... Synonym: ligamentum arcuatum laterale, arcus lumbocostalis …

arcus lumbocostalis medialis
Synonym for medial arcuate ligament ... <anatomy> One of Haller's arches; a tendinous thickening of the psoas fascia that extends from the body of the first lumbar vertebra to its transverse process on either side. A portion of the diaphragm arises from it. ... Synonym: ligamentum arcuatum mediale, arcus lumbocostalis medialis, medial lumbocost …

arcus palatini
See: palatoglossal arch, palatopharyngeal arch. ... (05 Mar 2000) ...

arcus palatoglossus
Synonym for palatoglossal arch ... One of a pair of ridges or folds of mucous membrane passing from the soft palate to the side of the tongue; it encloses the palatoglossus muscle and forms anterior margin of the tonsillar fossa. Also demarcates oral cavity from isthmus of fauces. ... Synonym: arcus palatoglossus, anterior palatine arch, anterior pil …

arcus palatopharyngeus
Synonym for palatopharyngeal arch ... One of a pair of ridges or folds of mucous membrane which passes downward from the posterior margin of the soft palate to the lateral wall of the pharynx. It encloses the palatopharyngeus muscle and forms the posterior margin of the tonsillar fossa. It also demarcates the isthmus of fauces from oropharynx. ... Sy …

arcus palmaris profundus
deep palmar (arterial) arch ...

arcus palmaris superficialis
superficial palmar (arterial) arch ...

arcus palpebralis inferior
Synonym for arterial arch of lower eyelid ... Formed by the medial palpebral artery which communicates with a branch of the lacrimal artery along the tarsal margin. ... Synonym: arcus palpebralis inferior. ... (05 Mar 2000) ...

arcus palpebralis superior
Synonym for arterial arch of upper eyelid ... Formed by communicating branches of the medial and lateral palpebral arteries. Often two arches are present, one located near the free border of the tarsal plate, the other along the upper border of the tarsus. ... Synonym: arcus palpebralis superior. ... (05 Mar 2000) ...

arcus pedis longitudinalis
Synonym for longitudinal arch of foot ... See: medial longitudinal arch of foot, lateral longitudinal arch of foot. ... Synonym: arcus pedis longitudinalis, lateral part of longitudinal arch of foot. ... (05 Mar 2000) ...

arcus pedis transversalis
Synonym for transverse arch of foot ... The arch formed by the proximal parts of the metatarsal bones, the three cuneiform bones, and the cuboid. ... Synonym: arcus pedis transversalis. ... (05 Mar 2000) ...

arcus plantaris
Synonym for plantar arch ... The arterial arch formed by the lateral plantar artery running across the bases of the metatarsal bones and anastomosing with the dorsal pedis artery, either of two bony arch's of the foot, longitudinal arch or transverse arch. ... See: medial longitudinal arch of foot, lateral longitudinal arch of foot, transverse arch o …

arcus posterior atlantis
Synonym for posterior arch of atlas ... The posterior arch of the atlas that connects the lateral masses of the atlas posteriorly, forming the posterior wall of the vertebral canal at this level. ... Synonym: arcus posterior atlantis. ... (05 Mar 2000) ...

arcus pubis
Synonym for pubic arch ... The arch formed by the symphysis, bodies and inferior rami of the pubic bones. ... See: subpubic angle. ... Synonym: arcus pubis. ... (05 Mar 2000) ...

arcus raninus
Synonym for Beclard's anastomosis ... An anastomosis between the right and the left end-branch of the deep lingual artery. ... Synonym: arcus raninus. ... (05 Mar 2000) ...

arcus senilis
<clinical sign, ophthalmology> An opaque ring around the iris (coloured portion of the eye), seen most often in elderly people. ... (27 Sep 1997) ...

arcus superciliaris
Synonym for superciliary arch ... A fullness extending laterally from the glabella on either side, above the orbital margin of the frontal bone. ... Synonym: arcus superciliaris, superciliary ridge. ... (05 Mar 2000) ...

arcus tarseus
See: arterial arch of lower eyelid, arterial arch of upper eyelid. ... (05 Mar 2000) ...

arcus tendineus
Synonym for tendinous arch ... A white, fibrous band attached to bone and/or muscle, arching over and thus protecting neurovascular elements passing beneath it from injurious compression, a linear thickening of the deep fascia of a muscle which provides attachment for ligaments and/or muscle fibres. ... Synonym: arcus tendineus. ... (05 Mar 2000) ...

arcus tendineus fasciae pelvis
Synonym for tendinous arch of pelvic fascia ... A linear thickening of the superior fascia of the pelvic diaphragm extending posteriorly from the body of the pubis alongside the bladder (and vagina in the female) and giving attachment to the supporting ligaments of the pelvic viscera. ... Synonym: arcus tendineus fasciae pelvis. ... (05 Mar 2000) ...

arcus tendineus musculi solei
Synonym for tendinous arch of soleus muscle ... <anatomy> A tendinous arch stretching over the popliteal vessels between the tibia and fibula, that gives origin to the central portion of the soleus muscle. ... Synonym: arcus tendineus musculi solei. ... (05 Mar 2000) ...

arcus tendineus of obturator fascia
Synonym for tendinous arch of levator ani muscle ... <anatomy> A thickened portion of the obturator fascia that extends in an arching line from the pubis posteriorly to the ischial spine and gives origin to part of the levator ani muscle. ... Synonym: arcus tendineus musculi levatoris ani, arcus tendineus of obturator fascia. ... (05 Mar 2000)
arcus venosus dorsalis pedis
Synonym for dorsal venous arch of foot ... The arch in the subcutaneous tissue of the dorsum of the foot formed by the dorsal and digital veins; it unites medially with the dorsal vein of the great toe to form the great saphenous vein, and laterally with the dorsal vein of the little toe to form the small saphenous. ... Synonym: arcus venosus dorsali …

arcus venosus juguli
Synonym for jugular venous arch ... A connecting vein between the two anterior jugular veins in the suprasternal space. ... Synonym: arcus venosus juguli. ... (05 Mar 2000) ...

arcus venosus palmaris profundus
Synonym for deep palmar venous arch ... The venous arch that accompanies the deep palmar arterial arch it usually consists of paired venae comitantes. ... Synonym: arcus venosus palmaris profundus. ... (05 Mar 2000) ...

arcus venosus plantaris
Synonym for plantar venous arch ... The arch formed by the plantar digital veins from the toes which accompanies the plantar arterial arch. ... Synonym: arcus venosus plantaris. ... (05 Mar 2000) ...

arcus vertebrae
Synonym for vertebral arch ... The posterior projection from the body of a vertebra that encloses the vertebral foramen; it consists of paired pedicles and laminae; the spinous, transverse, and articular processes arise from the arch. In aggregate, the venous arches-and the ligamenta flava that unite them-form the posterior wall of the vertebral (sp …

arcus volaris profundus
deep palmar (arterial) arch ...

arcus volaris superficialis
superficial palmar (arterial) arch ...

arcus zygomaticus
Synonym for zygomatic arch ... The arch formed by the temporal process of the zygomatic bone that joins the zygomatic process of the temporal bone. ... Synonym: arcus zygomaticus, cheek bone, malar arch, zygoma. ... (05 Mar 2000) ...