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

sensory amusia
Inability to interpret or appreciate musical sounds. ... (05 Mar 2000) ...

sensory aphasia
Aphasia in which there is impairment in the comprehension of spoken and written words, associated with effortless, articulated, but paraphrasic, speech and writing; malformed words, substitute words, and enologisms are charcteristic. When severe, and speech is incomprehensible, it is called jargon aphasia. The patient often appears unaware of his d …

sensory areas
Synonym for cerebral cortex ... The outer portion of the brain, consisting of layersof nerve cells and the pathways that connect them. The cerebralcortex is the part of the brain in which thought processes take place.In Alzheimer's disease, nerve cells in the cerebral cortex die. ... (22 May 1997) ...

sensory ataxia
An ataxia due to impairment of position sense caused by lesions located at some point along the central or peripheral sensory pathways. ... (05 Mar 2000) ...

sensory cell
A cell in the peripheral nervous system that receives afferent (sensory) input; sensory receptor cells. ... (05 Mar 2000) ...

sensory cortex
Formerly denoting specifically the somatic sensory cortex, but now used to refer collectively to the somatic sensory, auditory, visual, and olfactory regions of the cerebral cortex. ... (05 Mar 2000) ...

sensory crossway
The postlenticular portion of the posterior limb of the internal capsule of the brain. ... (05 Mar 2000) ...

sensory deprivation
The absence or restriction of the usual external sensory stimuli to which the individual responds. ... (12 Dec 1998) ...

sensory epilepsy
Focal epilepsy initiated by a somatosensory phenomenon. ... (05 Mar 2000) ...

sensory ganglion
A cluster of primary sensory neurons forming a usually visible swelling in the course of a peripheral nerve or its dorsal root; such nerve cells establish the sole afferent neural connection between the sensory periphery (skin, mucous membranes of the oral and nasal cavities, muscle tissue, tendons, joint capsules, special sense organs, blood vesse …

sensory image
An image based on one or more types of sensation. ... (05 Mar 2000) ...

sensory nerve
<anatomy, nerve> An afferent nerve conveying impulses that are processed by the central nervous system so as to become part of the organism's perception of self and its environment. ... (05 Mar 2000) ...

sensory neuron
1. <anatomy> A neuron that receives input from sensory cells. ... 2. <physiology> Sensory cells such as cutaneous mechanoreceptors and muscle receptors. ... (18 Nov 1997) ...

sensory neuronopathy
Neuronopathy confined to dorsal root and gasserian ganglia. ... (05 Mar 2000) ...

sensory nuclei
A group of cell bodies that receive afferent (sensory) input from the periphery. ... (05 Mar 2000) ...

sensory paralysis
Loss of sensation; anaesthesia. ... (05 Mar 2000) ...

sensory precipitated epilepsy
Synonym for reflex epilepsy ... Seizures which are induced by peripheral stimulation; e.g., audiogenic, laryngeal, photogenic, or other stimulation. ... Synonym: sensory precipitated epilepsy. ... (05 Mar 2000) ...

sensory receptors
Peripheral endings of afferent neurons. ... (05 Mar 2000) ...

sensory root of ciliary ganglion
Sensory fibres passing from the eyeball through the ciliary ganglion to their cell bodies in the trigeminal ganglion via the nasociliary nerve. ... Synonym: radix sensoria ganglii ciliaris, ramus communicans nervi nasociliaris cum ganglio ciliari, radix nasociliaris, long root of ciliary ganglion, nasociliary root, radix longa ganglii ciliaris. ... ( …

sensory root of trigeminal nerve
<anatomy, nerve> The large sensory root of the trigeminal (or fifth cranial) nerve, extending from the semilunar ganglion into the pons through the middle cerebellar peduncle or brachium pontis, immediately lateral to the small motor root. ... Synonym: radix sensoria nervi trigemini, portio major nervi trigemini. ... (05 Mar 2000) ...

sensory speech centre
Synonym for Wernicke's centre ... The region of the cerebral cortex thought to be essential for understanding and formulating coherent, propositional speech; it encompasses a large region of the parietal and temporal lobes near the lateral sulcus of the left cerebral hemisphere; corresponding approximately to Brodmann's areas 40, 39, and 22. ... Syno …

sensory system agents
Drugs that act on neuronal sensory receptors resulting in an increase, decrease, or modification of afferent nerve activity. ... (12 Dec 1998) ...

sensory thresholds
The minimum amount of stimulus energy necessary to elicit a sensory response. ... (12 Dec 1998) ...

sensory tract
See: lemniscus. ... (05 Mar 2000) ...

sensu lato
<zoology> In the broad sense i.e. Of a taxon - including all its subordinate taxa and/or other taxa sometimes considered as distinct. ... (09 Jan 1998) ...

sensu stricto
<zoology> In the strict sense, in the narrow sense. most often used to indicate the nominate subordinate taxon etc.). Or it may just indicate exclusion of similar taxa sometimes united with it. ... (09 Jan 1998) ...

sensual
1. Relating to the body and the senses, as distinguished from the intellect or spirit. ... 2. Denoting bodily or sensory pleasure, not necessarily sexual. ... Origin: L. Sensualis, endowed with feeling ... (05 Mar 2000) ...

sensualism
1. The condition or character of one who is sensual; subjection to sensual feelings and appetite; sensuality. ... 2. <philosophy> The doctrine that all our ideas, or the operations of the understanding, not only originate in sensation, but are transformed sensations, copies or relics of sensations; sensationalism; sensism. ... 3. <ethnology& …

sensuality
The state or quality of being sensual. ... (05 Mar 2000) ...

sentiment
1. A thought prompted by passion or feeling; a state of mind in view of some subject; feeling toward or respecting some person or thing; disposition prompting to action or expression. 'The word sentiment, agreeably to the use made of it by our best English writers, expresses, in my own opinion very happily, those complex determinations of the mind …

sentimental
1. Having, expressing, or containing a sentiment or sentiments; abounding with moral reflections; containing a moral reflection; didactic. 'Nay, ev'n each moral sentimental stroke, Where not the character, but poet, spoke, He lopped, as foreign to his chaste design, Nor spared a useless, though a golden line.' (Whitehead) ... 2. Inclined to sentimen …

sentinel
1. One who watches or guards; specifically, a soldier set to guard an army, camp, or other place, from surprise, to observe the approach of danger, and give notice of it; a sentry. 'The sentinels who paced the ramparts.' (Macaulay) ... 2. Watch; guard. 'That princes do keep due sentinel.' ... 3. <zoology> A marine crab (Podophthalmus vigil) nat …

sentinel animal
An animal deliberately placed in a particular environment to detect the presence of an infectious agent, such as a virus. ... (05 Mar 2000) ...

sentinel gland
A single enlarged lymph node in the omentum that may be an indication of an ulcer opposite to it in the greater or lesser curvature of the stomach. ... (05 Mar 2000) ...

sentinel loop sign
In gastrointestinal radiology, dilatation of a segment of large or small intestine, indicative of localised ileus from nearby inflammation. ... (05 Mar 2000) ...

sentinel pile
A circumscribed thickening of the mucous membrane at the lower end of a fissure of the anus. ... (05 Mar 2000) ...

sentinel spinous process fracture
Fracture of the spinous process with undetected deeper fracture's of the vertebral arch. ... (05 Mar 2000) ...

sentinel surveillance
Monitoring of rate of occurrence of specific conditions to assess the stability or change in health levels of a population. It is also the study of disease rates in a specific cohort, geographic area, population subgroup, etc. To estimate trends in larger population. ... (12 Dec 1998) ...

sentinel tag
Projecting edematous skin at the lower end of an anal fissure. ... (05 Mar 2000) ...

sentisection
Vivisection of an animal that is not anaesthetised. ... Origin: L. Sentio, to feel, + sectio, a cutting ... (05 Mar 2000) ...

sepal
<botany> A member of the (usually green) outer whorl of non-fertile parts surrounding the fertile organs of a flower. ... (09 Oct 1997) ...

sepaloid
<botany> Looking like sepals, for example of bracts, usually green and arranged in a ring beneath a flower. ... (09 Oct 1997) ...

separable
Capable of being separated, disjoined, disunited, or divided; as, the separable parts of plants; qualities not separable from the substance in which they exist. Sep'arableness, Sep'arably, 'Trials permit me not to doubt of the separableness of a yellow tincture from gold.' (Boyle) ... Origin: L. Separabilis: cf. F. Separable. ... Source: Websters Dic …

separate
1. To disunite; to divide; to disconnect; to sever; to part in any manner. 'From the fine gold I separate the alloy.' (Dryden) 'Separate thyself, I pray thee, from me.' (Gen. Xiii. 9) 'Who shall separate us from the love of Christ?' (Rom. Viii. 35) ... 2. To come between; to keep apart by occupying the space between; to lie between; as, the Mediterr …

separating medium
Any coating which serves to prevent one surface from adhering to another, in dentistry, a material usually applied to a cast to facilitate separation from the resin denture base after curing; a coating on impressions to facilitate removal of the cast. ... (05 Mar 2000) ...

separating wire
A wire, usually of soft brass, used to gain separation between teeth. ... See: separation. ... (05 Mar 2000) ...

separation
The act of separating, or the state of being separated, or separate. Specifically: ... Chemical analysis. ... Divorce. The operation of removing water from steam. Judicial separation, a form of divorce; a separation of man and wife which has the effect of making each a single person for all legal purposes but without ability to contract a new marriag …

separation anxiety
A child's apprehension or fear associated with removal from or loss of a parent or significant other. ... (05 Mar 2000) ...

separation anxiety disorder
A mental disorder occurring in childhood characterised by excessive anxiety when the child is separated from someone to whom the child is attached, usually a parent. ... (05 Mar 2000) ...

separation of retina
Synonym for retinal detachment ... <ophthalmology> A painless disorder (when spontaneous) where the patient complains of a gradual raising or lowering of a curtain over the visual field of the affected eye. May also occur as the result of trauma. ... (27 Sep 1997) ...

separation of teeth
Loss of proximal contact of teeth, in orthodontics, the creation of interproximal spaces for the fitting of an appliance. ... (05 Mar 2000) ...

separatrix
<radiobiology> In a divertor tokamak (and some other configurations), the last closed flux surface is formed not by inserting an object (limiter) but by manipulating the magnetic field, so that some field lines take a topologically different route (through the divertor, rather than simply around the central plasma). The boundary between the t …

seperator
<dentistry> A plastic or metal part which the orthodontist uses to create space between your teeth for bands. ... (08 Jan 1998) ...

Sephacryl
Trade name for a covalently cross linked allyl dextrose gel formed into beads. Used in gel filtration columns for separating molecules in the size range 5 kD to 1.5 million D. ... (18 Nov 1997) ...

Sephadex
Trade name for a cross linked dextran gel in bead form used for gel filtration columns: by varying the degree of cross linking the effective fractionation range of the gel can be altered. ... (18 Nov 1997) ...

Sepharose
Trade name for a gel of agarose in bead form from which charged polysaccharides have been removed. Used in gel filtration columns. ... (18 Nov 1997) ...

sepia
Origin: L, fr. Gr. The cuttlefish, or squid. ... 1. <zoology> The common European cuttlefish. A genus comprising the common cuttlefish and numerous similar species. ... 2. A pigment prepared from the ink, or black secretion, of the sepia, or cuttlefish. Treated with caustic potash, it has a rich brown colour; and this mixed with a red forms Rom …

sepiapterin synthase
<enzyme> Dihydroneopterin is converted to sepiapterin in the presence of one or more enzymes ... Registry number: EC 1.1.- ... (26 Jun 1999) ...

seprase
<enzyme> A large, gelatin-degrading membrane protease complex, may be a marker for melanoma cell invasiveness ... Registry number: EC 3.4.99.- ... Synonym: surface expressed protease ... (26 Jun 1999) ...

sepsis
The presence of organisms in the blood. ... (16 Dec 1997) ...

sepsis syndrome
<syndrome> A systemic response to infection, defined as hypothermia or hyperthermia, tachycardia, tachypnea, a clinically evident focus of infection or positive blood cultures, one or more end organs with either dysfunction or inadequate perfusion, cerebral dysfunction, hypoxaemia, increased plasma lactate or unexplained metabolic acidosis, a …

sept-
Seven. ... Origin: L. Septem ... (05 Mar 2000) ...

septa
Plural of septum. ... Origin: L. ... (05 Mar 2000) ...

septa interradicularia
Synonym for interradicular septa ... The bony partitions that project into the alveoli between the roots of the molar teeth. ... Synonym: septa interradicularia, intra-alveolar septa. ... (05 Mar 2000) ...

septal
Relating to a septum. ... (05 Mar 2000) ...

septal area
The region of the cerebral hemisphere that stretches as a thin sheet of brain tissue between the fornix bundle and the ventral surface of the corpus callosum, forming the medial wall of the lateral ventricle's frontal horn; it extends ventrally through the narrow interval between the anterior commissure and the rostrum of corpus collosum as the pre …

septal artery
<anatomy, artery> A branch of the superior labial artery that supplies the lower part of the nasal septum. ... (05 Mar 2000) ...

septal bone
Synonym for interalveolar septum ... The tissue intervening between two adjacent pulmonary alveoli; it consists of a close-meshed capillary network covered on both surfaces by very thin alveolar epithelial cells, one of the bony partitions between the tooth sockets. ... Synonym: septum interalveolare, alveolar septum, septal bone. ... (05 Mar 2000) …

septal branches
The interventricular septal branches; branches of the anterior and posterior interventricular arteries distributed to the muscle of the interventricular septum. ... Synonym: rami interventriculares septales. ... (05 Mar 2000) ...

septal cartilage
Synonym for nasal septal cartilage ... A thin cartilaginous plate located between vomer, perpendicular plate of the ethmoid, and nasal bones, and completing the nasal septum anteriorly. ... Synonym: cartilago septi nasi, cartilage of nasal septum, cartilaginous septum, pars cartilaginea septi nasi, quadrangular cartilage, septal cartilage. ... (05 Mar …

septal cell
A round pale cell of the lungs in the septa between the pulmonary alveoli. ... (05 Mar 2000) ...

septal cusp of tricuspid valve
The leaflet of the tricuspid valve located adjacent to the interventricular septum. ... Synonym: cuspis septalis valvae atrioventricularis dextrae. ... (05 Mar 2000) ...

septal defect, atrial
A hole in the septum, the wall, between the atria, the upper chambers of the heart. Commonly called an asd. Asds are a major class of heart deformity that is present at birth (congenital cardiac malformation). ... (12 Dec 1998) ...

septal defect, ventricular
A hole in the interventricular septum, the wall between the ventricles, the lower chambers of the heart. Commonly called a vsd. Vsds are a common class of heart deformity that is present at birth (congenital cardiac malformation). ... (12 Dec 1998) ...

septal gingiva
That portion of the gingiva that covers the interdental septum. ... (05 Mar 2000) ...

septal lines
Radiographic images of thickened interlobular septa, most often along the lateral border of lung, extending to pleura; Kerley A and B lines; usually caused by septal oedema and fibrosis, also carcinomatosis. ... (05 Mar 2000) ...

septal nuclei
Neural nuclei situated in the septal region of the diencephalon. ... (12 Dec 1998) ...

septan
Denoting a malarial fever the paroxysms of which recur every seventh day, counting the day of the occurrence as the first day, i.e., with a five-day asymptomatic interval. ... Origin: L. Septem, seven ... (05 Mar 2000) ...

Septata
A recently described member of the protozoan phylum Microspora found in the intestine of an immunocompromised individual. The species described is Septata intestinalis. ... (05 Mar 2000) ...

septate
Divided internally by partitions. ... (09 Oct 1997) ...

septate hymen
A hymen in which there are two openings separated by a narrow band of tissue. ... Compare: hymen bifenestratus. ... (05 Mar 2000) ...

septate junction
An intercellular junction found in invertebrate epithelia that is characterised by a ladder like appearance in electron micrographs. Thought to provide structural strength and to provide a barrier to diffusion of solutes through the intercellular space. Occur widely in transporting epithelia and are controversially considered analogous to tight jun …

septate mycelium
One in which septa, or 'cross-walls,' divide the hyphae into numerous uninucleated or multinucleated cells. ... (05 Mar 2000) ...

septate uterus
A uterus divided into two cavities by an anteroposterior septum. ... Synonym: bipartite uterus, uterus bilocularis, uterus bipartitus, uterus septus. ... (05 Mar 2000) ...

septate vagina
A vagina that is divided, usually longitudinally, to create a double vagina. This situation can be easily missed by the patient and even by the doctor on exam. If the patient becomes sexually active prior to diagnosis, one of the vaginas stretches and becomes dominant. The other vagina slips slightly upward and flush and is a little difficult to en …

septectomy
<procedure> Operative removal of the whole or a part of a septum, specifically of the nasal septum. ... Origin: L. Saeptum, septum, + G. Ektome, excision ... (05 Mar 2000) ...

septemia
A rarely used term for septicaemia. ... (05 Mar 2000) ...

septfoil
1. <botany> A European herb, the tormentil. See Tormentil. ... 2. An ornamental foliation having seven lobes. Cf. Cinquefoil, Quarterfoil, and Trefoil. ... 3. A typical figure, consisting of seven equal segments of a circle, used to denote the gifts of the Holy Chost, the seven sacraments as recognised by the Roman Catholic Church, etc. ... Orig …

septic
Pproduced by or due to decomposition by microorganisms, putrefactive. ... Origin: Gr. Septikos ... (18 Nov 1997) ...

septic abortion
An infectious abortion complicated by fever, endometritis, and parametritis. ... (05 Mar 2000) ...

septic arthritis
<pathology> A pus-forming bacterial infection of a joint space. ... Symptoms include a hot, swollen, red joint, that is very tender to any attempted movement. ... (27 Sep 1997) ...

septic bursitis
A bursa is a closed fluid-filled sac that functions as a gliding surface to reduce friction between tissues of the body. When the bursa becomes inflamed, the condition is known as bursitis. When the bursa is infected with bacteria, the condition is called septic bursitis. ... (12 Dec 1998) ...

septic bursitis. Bypass
An operation in which the surgeon creates a new pathway for the movement of substances in the body. ... (12 Dec 1998) ...

septic endocarditis
Synonym for malignant endocarditis ... Acute bacterial endocarditis, usually secondary to suppuration elsewhere and running a fulminating course. ... Synonym: septic endocarditis. ... (05 Mar 2000) ...

septic fever
Synonym for septicaemia ... Systemic disease associated with the presence and persistence of pathogenic microorganisms or their toxins in the blood. ... Synonym: blood poisoning. ... See: bacteraemia. ... Origin: Gr. Haima = blood ... (11 Jan 1998) ...

septic infarct
An area of necrosis resulting from vascular obstruction due to emboli comprised of clumps of bacteria or infected material. ... (05 Mar 2000) ...

septic intoxication
Synonym for septicaemia ... Systemic disease associated with the presence and persistence of pathogenic microorganisms or their toxins in the blood. ... Synonym: blood poisoning. ... See: bacteraemia. ... Origin: Gr. Haima = blood ... (11 Jan 1998) ...

septic phlebitis
Inflammation of a vein due to bacterial infection. ... (05 Mar 2000) ...

septic pneumonia
Synonym for suppurative pneumonia ... Any pneumonia associated with the formation of pus and destruction of pulmonary tissue; abscess formation may occur. ... Synonym: septic pneumonia. ... (05 Mar 2000) ...

septic retinitis
Synonym for metastatic retinitis ... Purulent or septic retinitis resulting from the arrest of septic emboli in the retinal vessels. ... Synonym: purulent retinitis, septic retinitis. ... (05 Mar 2000) ...