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

stratum corneum unguis
The outer, horny layer of the nail. ... Synonym: cornified layer of nail, horny layer of nail. ... (05 Mar 2000) ...

stratum cutaneum membranae tympani
The thin layer of skin on the external surface of the tympanic membrane. ... Synonym: cutaneous layer of tympanic membrane. ... (05 Mar 2000) ...

stratum cylindricum
Synonym for stratum basale epidermidis ... The deepest layer of the epidermis, composed of dividing stem cells and anchoring cells. ... Synonym: basal cell layer, columnar layer, germinative layer, palisade layer, stratum basale, stratum cylindricum, stratum germinativum. ... (05 Mar 2000) ...

stratum disjunctum
The layer of partly detached cells on the free surface of the stratum corneum, as seen in sections under the microscope; an artifact of fixation. ... (05 Mar 2000) ...

stratum fibrosum
fibrous articular capsule, fibrous capsule ...

stratum functionale
The endometrium except for the stratum basale; formerly believed to be lost during menstruation but now considered to be only partially disrupted. ... (05 Mar 2000) ...

stratum ganglionare nervi optici
Synonym for ganglionic layer of optic nerve ... <anatomy, nerve> The inner layer of multipolar neurons in the retina consisting of the relatively large neurons that give rise to the fibres of the optic nerve. ... Synonym: stratum ganglionare nervi optici. ... (05 Mar 2000) ...

stratum ganglionare retinae
Synonym for ganglionic layer of retina ... The intermediate layer of neurons in the retina composed largely of bipolar cells. ... Synonym: internal nuclear layer of retina, stratum ganglionare retinae, stratum nucleare internum retinae. ... (05 Mar 2000) ...

stratum gangliosum cerebelli
Synonym for piriform neuron layer ... The layer of Purkinje cells between the molecular and granular layers of the cerebellar cortex. ... Synonym: stratum neuronorum piriformium, ganglionic layer of cerebellar cortex, layer of piriform neurons, Purkinje's layer, stratum gangliosum cerebelli. ... (05 Mar 2000) ...

stratum germinativum
Synonym for stratum basale epidermidis ... The deepest layer of the epidermis, composed of dividing stem cells and anchoring cells. ... Synonym: basal cell layer, columnar layer, germinative layer, palisade layer, stratum basale, stratum cylindricum, stratum germinativum. ... (05 Mar 2000) ...

stratum germinativum unguis
The deeper layer of the nail that is continuous with the stratum germinativum of the surrounding skin and from which the nail plate is continuously formed. ... Synonym: germinative layer of nail. ... (05 Mar 2000) ...

stratum granulosum cerebelli
Synonym for granular layer of cerebellum ... The deepest of the three layers of the cortex; it contains large numbers of granule cells, the dendrites of which synapse with incoming mossy fibres in cerebellar glomeruli. Thin, unmyelinated axons of granule cells ascend perpendicularly into the molecular layer in which they bifurcate into fibres coursi …

stratum granulosum epidermidis
Synonym for granular layer of epidermis ... A layer of somewhat flattened cells containing basophilic granules of keratohyalin and lying just above the stratum spinosum and deeply to the stratum corneum. ... Synonym: stratum granulosum epidermidis. ... (05 Mar 2000) ...

stratum granulosum ovarii
Synonym for stratum granulosum folliculi ovarici vesiculosi ... The layer of small cells that forms the wall of an ovarian follicle. ... Synonym: granular layer of a vesicular ovarian follicle, granulosa, membrana granulosa, stratum granulosum ovarii. ... (05 Mar 2000) ...

stratum griseum medium
See: gray layer of superior colliculus. ... (05 Mar 2000) ...

stratum griseum profundum
See: gray layer of superior colliculus. ... (05 Mar 2000) ...

stratum griseum superficiale
See: gray layer of superior colliculus. ... (05 Mar 2000) ...

stratum interolivare lemnisci
The medial region of the medulla oblongata between the left and right olivary nucleus, traversed longitudinally by the left and right medial lemniscus, and transversely by the decussating olivocerebellar fibres. ... (05 Mar 2000) ...

stratum lemnisci
A largely fibrous (hence whitish) layer of the superior colliculus separating the middle gray layer of superior colliculus from the deep gray layer of superior colliculus and containing, among others, fibres from the spinal and trigeminal lemnisci. ... Synonym: fillet layer. ... (05 Mar 2000) ...

stratum lucidum
A layer of lightly staining corneocytes in the deepest level of the stratum corneum; found primarily in the thick epidermis of the palmar and plantar skin. ... Synonym: clear layer of epidermis. ... (05 Mar 2000) ...

stratum moleculare
Synonym: molecular layer. ... (05 Mar 2000) ...

stratum moleculare cerebelli
Synonym for molecular layer of cerebellum ... The outer lamina of the cortex, containing the cell bodies and dendrites of Purkinje cells, the axons of the granule cells, and the cell bodies, dendrites, and axons of basket cells. ... Synonym: stratum moleculare cerebelli, molecular layer of cerebellar cortex. ... (05 Mar 2000) ...

stratum moleculare retinae
Synonym for molecular layer of retina ... Name applied to each of the plexiform layers of the retina. ... Synonym: stratum moleculare retinae. ... (05 Mar 2000) ...

stratum neuroepitheliale retinae
Synonym for neuroepithelial layer of retina ... The outermost layer of the cerebral layer of retina, composed of the primary receptor cells of the retina; the stratum consists of two sublayers: 1) an external layer made up of the rods and cones, the photosensitive processes of the receptor cells, and 2) the external nuclear layer containing the cell …

stratum neuronorum piriformium
Synonym for piriform neuron layer ... The layer of Purkinje cells between the molecular and granular layers of the cerebellar cortex. ... Synonym: stratum neuronorum piriformium, ganglionic layer of cerebellar cortex, layer of piriform neurons, Purkinje's layer, stratum gangliosum cerebelli. ... (05 Mar 2000) ...

stratum nucleare externum retinae
Synonym for neuroepithelial layer of retina ... The outermost layer of the cerebral layer of retina, composed of the primary receptor cells of the retina; the stratum consists of two sublayers: 1) an external layer made up of the rods and cones, the photosensitive processes of the receptor cells, and 2) the external nuclear layer containing the cell …

stratum nucleare internum retinae
Synonym for ganglionic layer of retina ... The intermediate layer of neurons in the retina composed largely of bipolar cells. ... Synonym: internal nuclear layer of retina, stratum ganglionare retinae, stratum nucleare internum retinae. ... (05 Mar 2000) ...

stratum opticum
Synonym for optic layer ... A layer of white matter interspersed with nerve-cell bodies, immediately below the superficial gray layer of the superior colliculus, composed of myelinated fibres originating in the retina and striate cortex, the inner layer of the retina, consisting of the fibres originating from the cells of the ganglionic layer of opt …

stratum papillare corii
The more superficial layer of the corium whose papillae interdigitate with the epidermis. ... Synonym: corpus papillare, papillary layer. ... (05 Mar 2000) ...

stratum pigmenti bulbi
Synonym for pigmented layer of retina ... The outer layer of the retina, consisting of pigmented epithelium. ... Synonym: ectoretina, stratum pigmenti bulbi, stratum pigmenti retinae, tapetum nigrum, tapetum oculi. ... (05 Mar 2000) ...

stratum pigmenti corporis ciliaris
The continuation of the pigment layer of the retina onto the posterior aspect of the ciliary body. ... Synonym: pigmented layer of ciliary body. ... (05 Mar 2000) ...

stratum pigmenti iridis
The double layer of pigmented epithelium on the posterior surface of the iris. ... Synonym: pigmented layer of iris. ... (05 Mar 2000) ...

stratum pigmenti retinae
Synonym for pigmented layer of retina ... The outer layer of the retina, consisting of pigmented epithelium. ... Synonym: ectoretina, stratum pigmenti bulbi, stratum pigmenti retinae, tapetum nigrum, tapetum oculi. ... (05 Mar 2000) ...

stratum radiatum membranae tympani
The connective tissue layer of the tympanic membrane beneath the stratum cutaneum, the fibres of which radiate from the manubrium of the malleus to the peripheral fibrocartilaginous ring of the membrane; absent from the pars flaccida. ... Synonym: radiate layer of tympanic membrane. ... (05 Mar 2000) ...

stratum reticulare corii
The thicker deep layer of the corium consisting of dense irregularly arranged connective tissue. ... Synonym: reticular layer of corium, stratum reticulare cutis, tunica propria corii. ... (05 Mar 2000) ...

stratum reticulare cutis
Synonym for stratum reticulare corii ... The thicker deep layer of the corium consisting of dense irregularly arranged connective tissue. ... Synonym: reticular layer of corium, stratum reticulare cutis, tunica propria corii. ... (05 Mar 2000) ...

stratum spinosum epidermidis
The layer of polyhedral cells in the epidermis; shrinkage artifacts and adhesion of these cells at their desmosomal junctions gives a spiny or prickly appearance. ... Synonym: prickle cell layer, spinous layer. ... (05 Mar 2000) ...

stratum spongiosum
The middle layer of the endometrium formed chiefly of dilated glandular structures; it is flanked by the compacta on the luminal side and the basalis on the myometrial side. ... (05 Mar 2000) ...

stratum subcutaneum
Synonym for superficial fascia ... A loose fibrous envelope beneath the skin, containing fat in its meshes (panniculus adiposus) or fasciculi of muscular tissue (panniculus carnosus); it contains the cutaneous vessels and nerves and is in relation by its undersurface with the deep fascia. ... Synonym: fascia superficialis, tela subcutanea, hypoderm, …

stratum synoviale
synovial membrane, synovial membrane ...

stratum zonale
Synonym for zonular layer ... A thin layer of white substance covering the upper surface of the thalamus and forming part of the floor of the body of the lateral ventricle, a layer of white substance on the surface of the superior colliculus. ... Synonym: stratum zonale. ... (05 Mar 2000) ...

Straus reaction
A diagnostic test for glanders. Male guinea pigs are inoculated intraperitoneally with suspected material; if the glanders organism is present, it will usually set up a necrotizing inflammation in the scrotal sac within a few days and the specific organism can be confirmed bacteriologically. ... (05 Mar 2000) ...

Straus, Isidore
<person> French physician, 1845-1896. ... See: Straus reaction, Straus' sign. ... (05 Mar 2000) ...

Straus' sign
<clinical sign> In facial paralysis, if an injection of pilocarpine is followed by sweating on the affected side later than on the other, the lesion is peripheral. ... (05 Mar 2000) ...

Strauss, Lotte
<person> U.S. Pathologist, *1913. ... See: Churg-Strauss syndrome. ... (05 Mar 2000) ...

Straussler
See: Gerstmann-Straussler-Scheinker syndrome. ... (05 Mar 2000) ...

straw
1. A stalk or stem of certain species of grain, pulse, etc, especially of wheat, rye, oats, barley, more rarely of buckwheat, beans, and pease. ... 2. The gathered and thrashed stalks of certain species of grain, etc.; as, a bundle, or a load, of rye straw. ... 3. Anything proverbially worthless; the least possible thing; a mere trifle. 'I set not a …

straw itch
Straw-bed itch, an urticarial eruption caused by the mite, Pyemotes ventricosus, which can infest straw used in mattresses. ... Synonym: dermatitis pediculoides ventricosus. ... (05 Mar 2000) ...

strawberry
<botany> A fragrant edible berry, of a delicious taste and commonly of a red colour, the fruit of a plant of the genus Fragaria, of which there are many varieties. Also, the plant bearing the fruit. The common American strawberry is Fragaria virginiana; the European, F. Vesca. There are also other less common species. Strawberry bass. ... < …

strawberry birthmark
Synonym for strawberry nevus ... A small nevus vascularis (capillary haemangioma) resembling a strawberry in size, shape, and colour; it usually disappears spontaneously in early childhood. ... See: capillary haemangioma. ... Synonym: strawberry birthmark, strawberry mark. ... (05 Mar 2000) ...

strawberry gallbladder
A gallbladder of which the mucosa is dotted with yellowish cholesterol deposits contrasting with the red hyperaemic background. ... (05 Mar 2000) ...

strawberry haemangioma
<oncology, tumour> Red or purple-coloured vascular skin markings that develop shortly after birth. most are usually painless and benign. Some lesions (cavernous haemangiomas) will disappear or become harder to see as the child approaches school age. Localised steroid injections have been used successfully to reduce the size of a birthmark. …

strawberry mark
Red or purple-coloured vascular skin markings that develop shortly after birth. most are usually painless and benign. Some lesions (cavernous haemangiomas) will disappear or become harder to see as the child approaches school age. Localised steroid injections have been used successfully to reduce the size of a birthmark. ... (27 Sep 1997) ...

strawberry nevus
A small nevus vascularis (capillary haemangioma) resembling a strawberry in size, shape, and colour; it usually disappears spontaneously in early childhood. ... See: capillary haemangioma. ... Synonym: strawberry birthmark, strawberry mark. ... (05 Mar 2000) ...

strawberry tongue
A physical finding where the papillae of the tongue stand out as bright red dots against the dull white coated surface. Typically seen in scarlet fever or Kawasaki disease. ... (27 Sep 1997) ...

streak
1. A line or long mark of a different colour from the ground; a stripe; a vein. 'What mean those coloured streaks in heaven?' (Milton) ... 2. A strake. ... 3. <chemical> The fine powder or mark yielded by a mineral when scratched or rubbed against a harder surface, the colour of which is sometimes a distinguishing character. ... 4. The rung or r …

streak culture
A culture produced by lightly stroking an inoculating needle or loop with inoculum over the surface of a solid medium. ... (05 Mar 2000) ...

streak gonad
Synonym for gonadal streak ... A form of aplasia in which the ovary is replaced by a functionless tissue, as found in Turner's syndrome. ... Synonym: streak gonad. ... (05 Mar 2000) ...

streak hyperostosis
Synonym for rheostosis ... A hypertrophying and condensing osteitis which tends to run in longitudinal streaks or columns, like wax drippings on a candle, and which involves a number of the long bones. ... Synonym: flowing hyperostosis, streak hyperostosis. ... Origin: rheo-+ G. Osteon, bone, + -osis, condition ... (05 Mar 2000) ...

stream
To send forth in a current or stream; to cause to flow; to pour; as, his eyes streamed tears. 'It may so please that she at length will stream Some dew of grace into my withered heart.' (Spenser) ... 2. To mark with colours or embroidery in long tracts. 'The herald's mantle is streamed with gold.' (Bacon) ... 3. To unfurl. To stream the buoy. ... See …

stream class
Classification of streams based on the present and foreseeable uses made of the water, and the potential effects of on-site changes on downstream uses. Four classes are defined ... (05 Dec 1998) ...

stream-type fish
Fish that rear for a year or more in a stream. ... (09 Oct 1997) ...

streamer
1. An ensign, flag, or pennant, which floats in the wind; specifically, a long, narrow, ribbonlike flag. 'Brave Rupert from afar appears, Whose waving streamers the glad general knows.' (Dryden) ... 3. A stream or column of light shooting upward from the horizon, constituting one of the forms of the aurora borealis. 'While overhead the North's dumb …

streaming movement
The form of movement characteristic of the protoplasm of leukocytes, amoebae, and other unicellular organisms; it involves the massing of the protoplasm at a point where surface pressure is least and its extrusion in the form of a pseudopod; the protoplasm may return to the body of the cell, resulting in the retraction of the pseudopod, or the enti …

streblodactyly
Synonym: camptodactyly. ... Origin: G. Streblos, twisted, + daktylos, finger ... (05 Mar 2000) ...

street drug
A controlled substance taken for non-medical purposes. Street drugs comprise various amphetamines, anaesthetics, barbiturates, opiates, and psychoactive drugs, and many are derived from natural sources (e.g., the plants Papaver somniferum, Cannibis sativa, Amanita pantherina, Lophophora williamsii). Slang names include acid (lysergic acid diethylam …

street drugs
Drugs obtained and often manufactured illegally for the subjective effects they are said to produce. They are often distributed in urban areas, but are also available in suburban and rural areas, and tend to be grossly impure and may cause unexpected toxicity. ... (12 Dec 1998) ...

street virus
An isolate of rabies virus from a naturally infected domestic animal. ... (05 Mar 2000) ...

Streeter, George
<person> U.S. Embryologist, 1873-1948. ... See: Streeter's bands, Streeter's developmental horizon(s). ... (05 Mar 2000) ...

Streeter's bands
Synonym for amniotic bands ... The strands of amniotic tissue adherent to the embryo or foetus; they may cause constriction of embryonic limbs. ... See: congenital amputation. ... Synonym: amniotic adhesions, annular band, constriction ring, Simonart's bands, Simonart's ligaments, Simonart's threads, Streeter's bands. ... (05 Mar 2000) ...

Streeter's developmental horizon
A term borrowed from geology and archeology by Streeter to define 23 developmental stages in young human embryos, from fertilization through the first 2 months; each horizon spanned 2 to 3 days and emphasized specific anatomic characteristics, to avoid discrepancies in the determination of age and body dimensions. ... Origin: G.L. Streeter ... (05 Ma …

Streiff, Enrico Bernard
<person> Swiss ophthalmologist, *1908.. ... See: Hallermann-Streiff syndrome, Hallermann-Streiff-Francois syndrome. ... (05 Mar 2000) ...

stremma
Synonym: sprain. ... Origin: G. A twist, fr. Strepho, to twist ... (05 Mar 2000) ...

strength
1. The quality or state of being strong; ability to do or to bear; capacity for exertion or endurance, whether physical, intellectual, or moral; force; vigor; power; as, strength of body or of the arm; strength of mind, of memory, or of judgment. 'All his [Samson's] strength in his hairs were.' (Chaucer) 'Thou must outlive Thy youth, thy strength, …

strength-duration curve
A graph relating the intensity of an electrical stimulus to the length of time it must flow to be effective. ... See: chronaxie, rheobase. ... (05 Mar 2000) ...

strep
Very commonly used shortened form of streptococcus, a very common and important group of bacteria. See streptococcus ... (12 Dec 1998) ...

strep screen
A quick test for strep throat that is performed off a standard throat swab. Results can be obtained within a hour in most cases. ... (27 Sep 1997) ...

strep throat
An infection caused by a type of bacteria called streptococcus, which can lead to serious complications if not adequately treated. ... (12 Dec 1998) ...

strephosymbolia
1. Generally, the perception of objects reversed as if in a mirror. ... 2. Specifically, difficulty in distinguishing written or printed letters that extend in opposite directions but are otherwise similar, such as p and d, or related kinds of mirror reversal. ... Origin: G. Strepho, to turn, + symbolon, a mark or sign ... (05 Mar 2000) ...

strepitus
Rarely used term for a noise, usually an auscultatory sound. ... Origin: L. ... (05 Mar 2000) ...

strepsiptera
<zoology> A group of small insects having the anterior wings rudimentary, and in the form of short and slender twisted appendages, while the posterior ones are large and membranous. They are parasitic in the larval state on bees, wasps, and the like. ... Synonym: Rhipiptera. ... Origin: NL, fr. Gr. A turning (fr. To twist) + a wing. ... Source: …

strepsirhini
A suborder of primates consisting of the following five families: cheirogaleidae, daubentoniidae, indriidae, lemuridae, and lorisidae. ... (12 Dec 1998) ...

streptavidin
<protein> Analogue of avidin. A protein isolated from Streptomycetes avidinii that has a high affinity for biotin. Used to detect biotin markers. ... (18 Nov 1997) ...

strepticaemia
Synonym for streptococcaemia ... The presence of streptococci in the blood. ... Synonym: strepticaemia, streptosepticaemia. ... Origin: streptococcus + G. Haima, blood ... (05 Mar 2000) ...

streptidine
Synonym for streptomycin ... <drug> Commonly used antibiotic in cell culture media: acts only on prokaryotes and blocks transition from initiation complex to chain elongating ribosome. Isolated originally from a soil streptomycete. ... (18 Nov 1997) ...

strepto-
Curved or twisted (usually relating to organisms thus described). ... Origin: G. Streptos, twisted, fr. Strepho, to twist ... (05 Mar 2000) ...

streptobacilli
Bacilli that remain attached in chains after cell division. ... (09 Oct 1997) ...

streptobacillus
A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that require serum, ascitic fluid, or blood for growth. Its organisms inhabit the throat and nasopharynx of wild and laboratory rats and cause one form of rat-bite fever in man. ... (12 Dec 1998) ...

Streptobacillus moniliformis
A species commonly found as an inhabitant of the nasopharynx of rats; it occurs as the aetiologic agent of an epizootic septic polyarthritis in mice and of one type of rat-bite fever; it is the type species of the genus Streptobacillus. ... (05 Mar 2000) ...

streptobiosamine
A methylamino disaccharide (streptose + N-methyl-l-glucosamine), with the oxygen link between C-2 of streptose and C-1 of the glucosamine; with streptidine, it forms streptomycin. ... (05 Mar 2000) ...

streptobiose
Old term for streptose. ... (05 Mar 2000) ...

streptocerciasis
Infection of man and higher primates with the nematode Mansonella streptocerca. ... (05 Mar 2000) ...

streptococcaceae
Gram-positive non-sporing bacteria including many parasitic, pathogenic, and saprophytic forms. ... (12 Dec 1998) ...

streptococcaemia
The presence of streptococci in the blood. ... Synonym: strepticaemia, streptosepticaemia. ... Origin: streptococcus + G. Haima, blood ... (05 Mar 2000) ...

streptococcal
Relating to or caused by any organism of the genus Streptococcus. ... (05 Mar 2000) ...

streptococcal fibrinolysin
Synonym for streptokinase ... <enzyme> Plasminogen activator released by Streptococcus pyogenes. Occurs in two forms, A and B. ... (18 Nov 1997) ...

streptococcal infections
Infections with bacteria of the genus streptococcus. ... (12 Dec 1998) ...

streptococcal lymphadenitis
A contagious bacterial disease of pigs caused by a group E streptococcus and characterised by the formation of abscesses in the cervical and/or cephalic lymph nodes. ... (05 Mar 2000) ...

streptococcal nuclease
<enzyme> From streptococcus haemolyticus; degrades RNA and DNA producing oligonucleotides terminating in 5'-phosphate ... Registry number: EC 3.1.30.- ... (26 Jun 1999) ...

streptococcal pneumonia
Pneumonia due to Streptococcus pyogenes. ... (05 Mar 2000) ...