Copy of `mondofacto - Online Medical Dictionary`

The wordlist doesn't exist anymore, or, the website doesn't exist anymore. On this page you can find a copy of the original information. The information may have been taken offline because it is outdated.

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

Schwann, Theodor
<person> Taught Anatomy and Physiology in Berlin, became Professor of Anatomy in Louvain and was later Professor of Comparative Anatomy and Physiology at Liege. Was an early advocate (1838) of the cellular doctrine of tissues and the originator of the neuronal theory of the nervous system. ... Schwann cell - produces myelin in the peripheral n …

schwannoma
<tumour> A benign, encapsulated neoplasm in which the fundamental component is structurally identical to a syncytium of Schwann cells; the neoplastic cells proliferate within the endoneurium, and the perineurium forms the capsule. The neoplasm may originate from a peripheral or sympathetic nerve, or from various cranial nerves, particularly t …

schwannoma derived growth factor
<growth factor> A growth factor containing an EGF like domain, mitogenic for astrocytes, Schwann cells and fibroblasts. ... (18 Nov 1997) ...

schwannosis
A non-neoplastic proliferation of Schwann cells in the perivascular spaces of the spinal cord; seen particularly in older patients, especially those with diabetes mellitus. ... (05 Mar 2000) ...

Schwartz syndrome
<syndrome> A congenital disorder characterised by myotonic myopathy, dystrophy of epiphyseal cartilages resulting in dwarfism, joint contractures, blepharophimosis, and characteristic facies; autosomal recessive inheritance. ... (05 Mar 2000) ...

Schwartz tractotomy
<procedure> A medullary spinothalamic tractotomy. ... (05 Mar 2000) ...

Schwartz, Henry
<person> U.S. Neurosurgeon, *1909. ... See: Schwartz tractotomy. ... (05 Mar 2000) ...

Schwartz, Oscar
<person> U.S. Paediatrician, *1919. ... See: Schwartz syndrome. ... (05 Mar 2000) ...

Schwartzmann reaction
Mis spelling of Shwartzman reaction. ... (18 Nov 1997) ...

Schweigger-Seidel, Franz
<person> German physiologist, 1834-1871. ... See: sheath of Schweigger-Seidel. ... (05 Mar 2000) ...

Schweninger-Buzzi anetoderma
Sudden appearance of bluish-white balloon-like lesions, soft and readily indented, chiefly on the trunk and extremities of women. ... (05 Mar 2000) ...

Schweninger, Ernst
<person> German dermatologist, 1850-1924. ... See: Schweninger-Buzzi anetoderma, Schweninger's method. ... (05 Mar 2000) ...

Schweninger's method
A method suggested to reduce obesity by restricting intake of fluid. ... (05 Mar 2000) ...

sciage
A to-and-fro, sawlike movement of the hand in massage. ... Origin: Fr. Scie, saw ... (05 Mar 2000) ...

sciatic foramen
Either of two foramina formed by the sacrospinous and sacrotuberous ligaments crossing the sciatic notches of the hip bone: greater sciatic foramen and lesser sciatic foramen. ... Synonym: foramen ischiadicum. ... (05 Mar 2000) ...

sciatic hernia
Protrusion of intestine through the great sacrosciatic foramen. ... Synonym: gluteal hernia, ischiocele. ... (05 Mar 2000) ...

sciatic nerve
<anatomy, nerve> A nerve which originates in the lumbar and sacral spinal cord (l4 to s3) and supplies motor and sensory innervation to the lower extremity. The sciatic nerve, which is the main continuation of the sacral plexus, is the largest nerve in the body. It has two major branches, the tibial nerve and the peroneal nerve. ... (12 Dec 19 …

sciatic neuralgia
Synonym for sciatica ... A syndrome characterised by pain radiating from the back into the buttock and into the lower extremity along its posterior or lateral aspect and most commonly caused by prolapse of the intervertebral disk, the term is also used to refer to pain anywhere along the course of the sciatic nerve. ... (18 Nov 1997) ...

sciatic neuritis
Synonym for sciatica ... A syndrome characterised by pain radiating from the back into the buttock and into the lower extremity along its posterior or lateral aspect and most commonly caused by prolapse of the intervertebral disk, the term is also used to refer to pain anywhere along the course of the sciatic nerve. ... (18 Nov 1997) ...

sciatic plexus
Synonym for sacral plexus ... Formed by the fourth and fifth lumbar (lumbosacral trunk) and first, second, and third sacral nerves; it lies on the inner surface of the posterior wall of the pelvis usually embedded in the piriformis muscle; its nerves supply the lower limbs, its major product being the sciatic nerve. ... Synonym: plexus sacralis, isch …

sciatic scoliosis
Scoliosis caused by asymmetric spasm of spinal muscles usually associated with sciatica, usually presenting as a list toward one side. ... (05 Mar 2000) ...

sciatic spine
Synonym for ischial spine ... A pointed process from the posterior border of the ischium on a level with the lower border of the acetabulum; gives attachment to the sacrospinous ligament; the pudendal nerve passes dorsal to the ischial spine, which is palpable per vagina or rectum, and thus is used as a target for the needle-tip in administering a p …

sciatica
A syndrome characterised by pain radiating from the back into the buttock and into the lower extremity along its posterior or lateral aspect and most commonly caused by prolapse of the intervertebral disk, the term is also used to refer to pain anywhere along the course of the sciatic nerve. ... (18 Nov 1997) ...

SCID
<abbreviation> Severe combined immunodeficiency. ... (05 Mar 2000) ...

SCID mice
<abbreviation> Severe combined immunodeficient mice. ... (05 Mar 2000) ...

science
The study of the material universe or physical reality in order to understand it. This is done by making observations and collecting data about natural events and conditions, then organising and explaining them with hypotheses, theories, models, laws, and principles. ... The organised body of knowledge about the material universe which can be verifi …

scientific
1. Of or pertaining to science; used in science; as, scientific principles; scientific apparatus; scientific observations. ... 2. Agreeing with, or depending on, the rules or principles of science; as, a scientific classification; a scientific arrangement of fossils. ... 3. Having a knowledge of science, or of a science; evincing science or systemati …

scientific feasibility
<radiobiology> Fusion will be considered scientifically feasible when (a) experiments are done which reach scientific breakeven-type plasma conditions (see entry on breakeven), and (b) the experimental results suggest that the approach can be scaled up into a power-producing system. Tokamak fusion reactors are closing in on (a), and tokamak r …

scientific integrity review
Designation for reports by the united states office of research integrity, identifying questionable research published in articles or books. Notification of the questionable data is carried in the nih guide for grants and contracts. ... (12 Dec 1998) ...

scientific method
The universally-accepted, organised approach to the study of science, which consists of the following steps: ... 1. Observation - collecting data. ... 2. Hypothesis - forming a preliminary possible explanation of the data. ... 3. Testing - test the hypothesis by collecting more data. ... 4. Results - interpreting the results of the test and deciding if …

scientific misconduct
Intentional falsification of scientific data by presentation of fraudulent or incomplete or uncorroborated findings as scientific fact. ... (12 Dec 1998) ...

scientism
The methods, activities, and principles which are typical to science. ... The concept that other areas besides science can and should be studied in a scientific manner, for example the humanities. ... (09 Oct 1997) ...

scilla
Synonym: squill. ... Origin: G. ... (05 Mar 2000) ...

scillaren
A mixture of glycosides, possessing digitalis-like actions, present in squill. ... Scillaren A, a crystalline steroidal glycoside, present in squill (Scilla maritima), that can be hydrolyzed to glucose and proscillaridin A; the latter can be hydrolyzed to rhamnose and the steroid aglycone scillaridin A; same actions and uses as digitalis glycosides. …

scillaricide
A toxic principle from squill used as a rodenticide. ... (05 Mar 2000) ...

scilliroside
Glycoside from red squill, the red variety of Urginea maritima (family Liliaceae). Used as a rodenticide. ... (05 Mar 2000) ...

scimitar
1. A saber with a much curved blade having the edge on the convex side, in use among Mohammedans, especially, the Arabs and persians. ... Alternative forms: cimeter, and scymetar. ... 2. A long-handled billhook. See Billhook. ... <botany> Scimiter pods, the immense curved woody pods of a leguminous woody climbing plant (Entada scandens) growing …

scimitar sign
<clinical sign> A curvilinear structure seen roentgenographically in the lung and associated with anomalous pulmonary venous drainage, suggesting the sickle shape, of a Turkish saber; also used to refer to the scalloped shape of the sacrum in spinal dysraphism with anterior meningocele. ... (05 Mar 2000) ...

scimitar syndrome
<radiology> Hypoplasia / aplasia of one or more lobes of lung, always on right, with or without partial APVR (to IVC, portal vein, etc.), scimitar-shaped density is draining vein ... (12 Dec 1998) ...

scinderin
<protein> Protein (80 kD) of the gelsolin family isolated from vertebrate neural and secretory tissue. Sub cortical scinderin is redistributed into patches following stimulation of chromaffin cells through nicotinic receptors. Similar to adseverin. ... (18 Nov 1997) ...

scinticisternography
Cisternography performed with a radiopharmaceutical and recorded with a stationary imaging device. ... (05 Mar 2000) ...

scintigram
<investigation> (radioisotope scan) a scan examination following the injection of a radioactive substance - this is to check for cancer spread to the bones or to study the function of other organs e.g. Kidneys, heart, lungs etc. The injection does not make the patient permanently radioactive and is very safe. ... (16 Dec 1997) ...

scintigraphic
Relating to or obtained by scintigraphy. ... (05 Mar 2000) ...

scintigraphic angiography
Synonym for radionuclide angiography ... The measurement of visualization by radiation of any organ after a radionuclide has been injected into its blood supply. It is used to diagnose heart, liver, lung, and other diseases and to measure the function of those organs, except renography, for which radioisotope renography is available. ... (12 Dec 1998 …

scintigraphy
A diagnostic procedure consisting of the administration of a radionuclide with an affinity for the organ or tissue of interest, followed by recording the distribution of the radioactivity with a stationary or scanning external scintillation camera. ... See: gamma camera. ... (05 Mar 2000) ...

scintillascope
<instrument> An obsolete term for scintillation counter. ... Origin: L. Scintilla, spark, + G. Skopeo, to observe ... (05 Mar 2000) ...

scintillating scotoma
A localised area of blindness edged by brilliantly coloured shimmering lights (teichopsia); usually a prodromal symptom of migraine. ... See: fortification spectrum. ... Synonym: flittering scotoma. ... (05 Mar 2000) ...

scintillation
1. Flashing or sparkling; a subjective sensation as of sparks or flashes of light. ... 2. In radiation measurement, the light produced by an ionizing event in a phosphor, as in a crystal or liquid scintillator. ... See: scintillation counter. ... Origin: L. Scintilla, a spark ... (05 Mar 2000) ...

scintillation camera
Synonym for gamma camera ... Any one of several scintigraphic cameras that records simultaneously counts from the entire operative field of view. ... Synonym: scintillation camera. ... (05 Mar 2000) ...

scintillation counter
An instrument used for the detection of radioactivity; the radiation is absorbed by a scintillator (a crystal or a compound, such as POPOP, in solution) which results in minute flashes of light that are detected by a photocathode. The resultant electron emission is amplified by a photomultiplier and an amplifier. ... Synonym: scintillometer, spintha …

scintillation counting
Technique for measuring quantity of a radioactive isotope present in a sample. In biology, liquid scintillation counting is mainly used for emitters such as (14)C, (35)S and 32)P and particularly for the low energy emission of 3H. ... Gamma emissions are often measured by counting the scintillations that they cause in a crystal. Autoradiographic ima …

scintillation proximity assay
Assay system in which antibody or receptor molecule is bound to a bead that will emit light when _ emission from an isotope occurs in close proximity, i.e. From a radioactively labelled ligand. Avoids the need for scintillant in order to measure the amount of bound isotope and thus the amount of antigen or ligand present. ... (18 Nov 1997) ...

scintillator
A substance that emits visible light when hit by a subatomic particle or x-or gamma ray. ... See: scintillation counter. ... (05 Mar 2000) ...

scintillometer
Synonym: scintillation counter. ... Origin: L. Scintilla, spark, + G. Metron, measure ... (05 Mar 2000) ...

scintiphotograph
The image obtained by scintiphotography. ... See: scintiscan. ... (05 Mar 2000) ...

scintiphotography
The process of obtaining a photographic recording of the distribution of an internally administered radiopharmaceutical with the use of a gamma camera. ... Synonym: scintography. ... (05 Mar 2000) ...

scintiscan
The record obtained by scintigraphy. ... See: scan. ... Synonym: photoscan, scintigram. ... (05 Mar 2000) ...

scintiscanner
The apparatus used to make a scintiscan. ... (05 Mar 2000) ...

scintography
Synonym for scintiphotography ... The process of obtaining a photographic recording of the distribution of an internally administered radiopharmaceutical with the use of a gamma camera. ... Synonym: scintography. ... (05 Mar 2000) ...

scioptic
<optics> Of or pertaining to an optical arrangement for forming images in a darkened room, usually called scioptic ball. ... <optics> Scioptic ball, the lens of a camera obscura mounted in a wooden ball which fits a socket in a window shutter so as to be readily turned, like the eye, to different parts of the landscape. ... Origin: Gr. Sh …

sciosophy
Rarely used term for a system of beliefs that are claimed to be facts but are not supported by scientific data. ... Origin: G. Skia, shadow, + sophia, wisdom ... (05 Mar 2000) ...

scirrhencanthis
An obsolete term for an indurated tumour of the lacrimal gland. ... Origin: G. Skirrhos, hard, a hard tumour, + en, in, + kanthos, canthus ... (05 Mar 2000) ...

scirrhous carcinoma
<tumour> A hard carcinoma, fibrous in nature, resulting from a desmoplastic reaction by the stromal tissue to the presence of the neoplastic epithelium. ... Synonym: fibrocarcinoma. ... (05 Mar 2000) ...

scission
1. A separation, division, or splitting, as in fission. ... Synonym: cleavage. ... Origin: L. Scissio, fr. Scindo, pp. Scissus, to cleave ... (05 Mar 2000) ...

scissor gait
One leg swings across the other instead of straight forward, producing a criss-cross motion of the legs in walking, with the foot imprints reversed; bilateral hemiplegic gait. ... (05 Mar 2000) ...

scissors
A cutting instrument resembling shears, but smaller, consisting of two cutting blades with handles, movable on a pin in the center, by which they are held together. Often called a pair of scissors. ... <zoology> [Formerly written also cisors, cizars, and scissars] Scissors grinder, the European goatsucker. ... Origin: OE. Sisoures, OF. Cisoires …

scissors-shadow
A distorted image seen in mixed astigmatism by retinoscopy. ... (05 Mar 2000) ...

scissura
1. Cleft or fissure. ... 2. A splitting. ... Synonym: scissure. ... Origin: L. ... (05 Mar 2000) ...

scissura pilorum
Synonym for schizotrichia ... A splitting of the hairs at their ends. ... Synonym: scissura pilorum. ... Origin: schizo-+ G. Thrix, hair ... (05 Mar 2000) ...

scissure
Synonym for scissura ... 1. Cleft or fissure. ... 2. A splitting. ... Synonym: scissure. ... Origin: L. ... (05 Mar 2000) ...

sciuridae
A family of the order rodentia which contains 49 genera. Some of the more common genera are marmota, which includes the marmot and woodchuck; sciurus, the gray squirrel, s. Carolinensis, and the fox squirrel, s. Niger; tamias, the eastern and western chipmunk; and tamiasciurus, the red squirrel. The flying squirrels, except the scaly-tailed anomalu …

scler-
See: sclero-. ... (05 Mar 2000) ...

sclera
<anatomy> The tough white outer coat of the eyeball, covering approximately the posterior five sixths of its surface and continuous anteriorly with the cornea and posteriorly with the external sheath of the optic nerve. ... Origin: L., Gr. Skleros = hard ... (18 Nov 1997) ...

scleradenitis
Inflammatory induration of a gland. ... Origin: scler-+ G. Aden, gland, + -itis, inflammation ... (05 Mar 2000) ...

scleral
Relating to the sclera. ... Synonym: sclerotic. ... (05 Mar 2000) ...

scleral buckling
An operation for retinal detachment which reduces the size of the globe by indenting the sclera so that it approximates the retina. ... (12 Dec 1998) ...

scleral buckling operation
An operation performed in retinal detachment to indent the sclerochoroidal wall. ... (05 Mar 2000) ...

scleral diseases
General disorders of the sclera or white of the eye. They may include anatomic, embryologic, degenerative, or pigmentation defects. ... (12 Dec 1998) ...

scleral ectasia
Synonym for sclerectasia ... Localised bulging of the sclera. ... Synonym: scleral ectasia. ... Origin: scler-+ G. Ektasis, an extension ... (05 Mar 2000) ...

scleral resection
Shortening of the outer coat of the eye in retinal separation. ... (05 Mar 2000) ...

scleral rigidity
The resistance of the eye to changes in shape with changes in intraocular pressure. ... (05 Mar 2000) ...

scleral ring
The appearance of the sclera adjacent to the optic disk when the retinal pigment epithelium does not extend to the optic nerve. ... (05 Mar 2000) ...

scleral roll
Synonym for scleral spur ... A ridge of the sclera at the internal scleral sulcus from which ciliary muscle fibres take origin. ... Synonym: scleral roll. ... Vascular spur, partial septum between vessels (arteries and veins) at the level of fusion or branching at acute angle. ... See: calcar. ... (05 Mar 2000) ...

scleral spur
A ridge of the sclera at the internal scleral sulcus from which ciliary muscle fibres take origin. ... Synonym: scleral roll. ... Vascular spur, partial septum between vessels (arteries and veins) at the level of fusion or branching at acute angle. ... See: calcar. ... (05 Mar 2000) ...

scleral staphyloma
Synonym for equatorial staphyloma ... A staphyloma occurring in the area of exit of the vortex veins. ... Synonym: scleral staphyloma. ... (05 Mar 2000) ...

scleral sulcus
A slight groove on the external surface of the eyeball indicating the line of union of the sclera and cornea or limbus of cornea. ... Synonym: sulcus sclerae, sulcus of sclera. ... (05 Mar 2000) ...

scleral veins
Small veins draining the sclera; they are tributaries to the anterior ciliary veins. ... Synonym: venae sclerales. ... (05 Mar 2000) ...

scleratogenous
Synonym for sclerogenous ... Producing hard or sclerotic tissue; causing sclerosis. ... Synonym: scleratogenous. ... Origin: sclero-+ G. -gen, producing ... (05 Mar 2000) ...

sclerectasia
Localised bulging of the sclera. ... Synonym: scleral ectasia. ... Origin: scler-+ G. Ektasis, an extension ... (05 Mar 2000) ...

sclerectomy
1. <procedure> Excision of a portion of the sclera. ... 2. Removal of the fibrous adhesions formed in chronic otitis media. ... Origin: scler-+ G. Ektome, excision ... (05 Mar 2000) ...

scleredema
Hard nonpitting oedema of the skin of the dorsal aspect of the upper body and extremities, giving a waxy appearance and no sharp demarcation; seen in diabetics and in scleredema adultorum. ... Origin: scler-+ G. Oidema, a swelling (oedema) ... (05 Mar 2000) ...

scleredema adultorum
A diffuse, non-pitting induration of the skin of unknown aetiology that occurs most commonly in association with diabetes mellitus, predominantly in females. It typically begins on the face or head and spreads to other areas of the body, sometimes involving noncutaneous tissues. Often it is preceded by any of various infections, notably staphylococ …

sclereid
Type of sclerenchyma cell that differs from the fibre cell by not being greatly elongated. Often occurs singly (an idioblast) or in small groups, giving rise to a gritty texture in, for instance, the pear fruit, where it is known as a stone cell. May also occur in layers, for example in hard seed coats. ... (18 Nov 1997) ...

sclerema
<medicine> Induration of the cellular tissue. Sclerema of adults. See Scleroderma. Sclerema neonatorum [NL, of the newborn], an affection characterised by a peculiar hardening and rigidity of the cutaneous and subcutaneous tissues in the newly born. It is usually fatal. ... Synonym: skinbound disease. ... Origin: NL, fr. Gr. Hard. ... Source: We …

sclerema adiposum
Synonym for sclerema neonatorum ... A severe, sometimes fatal, disorder of adipose tissue occurring chiefly in preterm or debilitated infants suffering from an underlying illness and manifested by a diffuse, nonpitting induration of the affected tissue. The skin becomes cold, yellowish, mottled, and inflexible. ... (12 Dec 1998) ...

sclerema neonatorum
A severe, sometimes fatal, disorder of adipose tissue occurring chiefly in preterm or debilitated infants suffering from an underlying illness and manifested by a diffuse, nonpitting induration of the affected tissue. The skin becomes cold, yellowish, mottled, and inflexible. ... (12 Dec 1998) ...

sclerencephaly
A general term for scarring and shrinkage of the substance of the brain. Sclerencephaly occurs because of chronic inflammation of the brain matter. ... (12 Dec 1998) ...

sclerenchyma
Plant cell type with thick lignified walls, normally dead at maturity and specialised for structural strength. Includes fibre cells, that are greatly elongated and sclereids, that are more isodiametric. Intermediate types exist. ... (18 Nov 1997) ...

sclerite
A hard plate or spicule which may be composed of chitin or calcium carbonate, often refers to the rigid parts of the arthropod (insects, crustaceans, etc.) exoskeleton. ... (09 Oct 1997) ...

scleritis
Refers to any inflammation of the sclera including episcleritis, a benign condition affecting only the episclera, which is generally short-lived and easily treated. Classic scleritis, on the other hand, affects deeper tissue and is characterised by higher rates of visual acuity loss and even mortality, particularly in necrotizing form. Its characte …