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

Sengstaken-Blakemore tube
A tube with three lumens, one for drainage of the stomach and two for inflation of attached gastric and oesophageal balloons; used for emergency treatment of bleeding oesophageal varices. ... (05 Mar 2000) ...

Sengstaken, Robert
<person> U.S. Neurosurgeon, *1923. ... See: Sengstaken-Blakemore tube. ... (05 Mar 2000) ...

senile
Of or pertaining to old age; proceeding from, or characteristic of, old age; affected with the infirmities of old age; as, senile weakness. 'Senile maturity of judgment. ... <medicine> ' Senile gangrene, a form of gangrene occuring particularly in old people, and caused usually by insufficient blood supply due to degeneration of the walls of t …

senile amyloidosis
A common form of amyloidosis in very old people, usually mild and limited to the heart. ... See: amyloidosis of aging. ... (05 Mar 2000) ...

senile arteriosclerosis
Arteriosclerosis similar to hypertensive arteriosclerosis, but as a result of advanced age rather than hypertension. ... (05 Mar 2000) ...

senile atrophoderma
Atrophoderma senilis, the loss of collagen, with thinning and decreased elasticity of the skin associated with old age. ... (05 Mar 2000) ...

senile atrophy
Wasting of tissues and organs with advancing age from decreased catabolic or anabolic processes, at times due to endocrine changes, decreased use, or ischemia. ... Synonym: geromarasmus. ... (05 Mar 2000) ...

senile cataract
A cataract occurring spontaneously in the elderly; mainly a cuneiform cataract, nuclear cataract, or posterior subcapsular cataract, alone or in combination. ... (05 Mar 2000) ...

senile chorea
A disorder resembling Sydenham's chorea, not associated with cardiac disease or dementia, occurring in the aged. ... (05 Mar 2000) ...

senile degeneration
The process of involution occurring in old age. ... (05 Mar 2000) ...

senile delirium
Delirium associated with senile dementia. ... (05 Mar 2000) ...

senile dementia
<neurology> A form of dementia caused by destruction (atrophy) of the frontal lobes of the brain. ... This condition leads to the progressive deterioration of mental functioning. ... Incidence: 9 out of 10,000 people in the population. ... (27 Sep 1997) ...

senile dental caries
Caries occurring in old age, usually interproximally and in the cementum. ... (05 Mar 2000) ...

senile deterioration
A slowly progressing decline in physical and mental health, apparently due to natural causes attendant upon the processes of aging. ... See: Alzheimer's disease. ... (05 Mar 2000) ...

senile dwarfism
Dwarfism characterised by craniofacial anomalies with progeroid appearance. ... (05 Mar 2000) ...

senile ectasia
An obsolete term for senile haemangioma. ... (05 Mar 2000) ...

senile emphysema
Emphysema consequent upon the physiologic atrophy of old age. ... (05 Mar 2000) ...

senile fibroma
Synonym for skin tag ... A polypoid outgrowth of both epidermis and dermal fibrovascular tissue, common terminology for any small benign cutaneous lesion. ... Synonym: acrochordon, fibroepithelial polyp, fibroma molle, senile fibroma, soft wart. ... (05 Mar 2000) ...

senile gangrene
Dry gangrene occurring in the aged in consequence of occlusion of an artery, particularly affecting the extremities. ... Synonym: Pott's gangrene. ... (05 Mar 2000) ...

senile haemangioma
<tumour> A red papule due to weakening of the capillary wall, seen mostly in persons over 30 years of age. ... Synonym: cherry angioma, De Morgan's spots, ruby spots. ... (05 Mar 2000) ...

senile halo
Circumpapillary halo seen in choroidal atrophy of the aged. ... (05 Mar 2000) ...

senile hip disease
Synonym for malum coxae senile ... <orthopaedics> Deformity of the head of the femur caused by ischemic damage. ... Synonym: senile hip disease. ... (05 Mar 2000) ...

senile involution
The retrogression of vital organs and psychological processes incident to aging. ... (05 Mar 2000) ...

senile keratoderma
Synonym for actinic keratosis ... <dermatology> A skin lesion that is abnormally sensitive to the effects of ultraviolet light (sunlight). Thought to be a precancerous skin lesion that is more common in the fair-skinned or elderly individual. ... Approximately 20% of these skin lesions will develop into squamous cell carcinoma. Prevention inclu …

senile keratoma
Synonym for actinic keratosis ... <dermatology> A skin lesion that is abnormally sensitive to the effects of ultraviolet light (sunlight). Thought to be a precancerous skin lesion that is more common in the fair-skinned or elderly individual. ... Approximately 20% of these skin lesions will develop into squamous cell carcinoma. Prevention inclu …

senile keratosis
Synonym for actinic keratosis ... <dermatology> A skin lesion that is abnormally sensitive to the effects of ultraviolet light (sunlight). Thought to be a precancerous skin lesion that is more common in the fair-skinned or elderly individual. ... Approximately 20% of these skin lesions will develop into squamous cell carcinoma. Prevention inclu …

senile lenticular myopia
Synonym for second sight ... 1. <ophthalmology> Improved near vision in the aged as a result of increased refractivity of the nucleus of the lens causing myopia. ... Synonym: senile lenticular myopia. ... 2. The power of discerning what is not visible to the physical eye, or of foreseeing future events. Such as are of a disastrous kind, the capa …

senile lentigo
A variably pigmented lentigo occurring on exposed skin of older Caucasians. ... Synonym: liver spot, solar lentigo. ... (05 Mar 2000) ...

senile memory
Memory that is good for remote events, often in contrast to current events; characteristically seen in aged or demented persons. ... (05 Mar 2000) ...

senile nephrosclerosis
Synonym for arterial nephrosclerosis ... Patchy atrophic scarring of the kidney due to arteriosclerotic narrowing of the lumens of large branches of the renal artery, occurring in old or hypertensive persons and occasionally causing hypertension. ... Synonym: arterionephrosclerosis, senile nephrosclerosis. ... (05 Mar 2000) ...

senile osteomalacia
Osteoporosis in the aged. ... (05 Mar 2000) ...

senile plaque
<neurology> Characteristic feature of the brains of Alzheimer's patients and aged monkeys, consisting of a core of amyloid fibrils surrounded by dystrophic neurites. ... The principal component of amyloid fibrils in senile plaques is B/A4, a peptide of about 4 kD that is derived from the larger amyloid precursor protein (APP). The B/A4 sequenc …

senile plaques
Microscopic argyrophilic masses composed of fragmented axon terminals and dendrites surrounding a core of amyloid. They are seen in small amounts in the cerebral cortex of normal elderly people and in larger amounts in those with alzheimer disease. ... (12 Dec 1998) ...

senile psychosis
Mental disturbance occurring in old age and related to degenerative cerebral processes. ... (05 Mar 2000) ...

senile retinoschisis
Retinoschisis occurring most often in the elderly and affecting the outer plexiform layer; it begins in the extreme inferotemporal periphery and is not significantly progressive; vision usually is good. ... (05 Mar 2000) ...

senile sebaceous hyperplasia
Hyperplasia of mature sebaceous glands, forming a nodule on the skin of the face or forehead in elderly persons. ... (05 Mar 2000) ...

senile tremor
An essential tremor that becomes symptomatic in elderly adults. ... (05 Mar 2000) ...

senile wart
Synonym for actinic keratosis ... <dermatology> A skin lesion that is abnormally sensitive to the effects of ultraviolet light (sunlight). Thought to be a precancerous skin lesion that is more common in the fair-skinned or elderly individual. ... Approximately 20% of these skin lesions will develop into squamous cell carcinoma. Prevention inclu …

senility
Old age, the physical and mental deterioration associated with old age. ... (18 Nov 1997) ...

senior homonym
<zoology> The earlier published of two or more identical but independently proposed names for the same or different taxa. ... See: homonym. ... (09 Jan 1998) ...

senior synonym
<zoology> The earlier published of two or more different names applied to one and the same taxon. ... See: synonym. ... (09 Jan 1998) ...

Senior-Loken syndrome
<syndrome> A rare hereditary kidney disease characterised by the gradual loss of kidney function due to the presence of cysts in the renal medulla. ... Symptoms include high urine output (cannot concentrate the urine), weakness, weight loss, nocturia, fatigue and headache. There is no cure and usually progresses from chronic renal failure to e …

senium
Rarely used term for old age; especially the debility of advanced age. ... Origin: L. The feebleness of age, fr. Seneo, to be old, feeble ... (05 Mar 2000) ...

senna
1. <medicine> The leaves of several leguminous plants of the genus Cassia. (C. Acutifolia. C. Angustifolia, etc). They constitute a valuable but nauseous cathartic medicine. ... 2. <botany> The plants themselves, native to the East, but now cultivated largely in the south of Europe and in the West Indies. Bladder senna. ... <botany> …

Sennetsu fever
A disease of man in western Japan caused by the rickettsia Ehrlichia sennetsu and characterised by fever, malaise, anorexia, backache, and lymphadenopathy. ... (05 Mar 2000) ...

Senning operation
An atrial switch operation for patients with transposition of the great arteries that employs a septal flap instead of excising the atrial septum as in the Mustard operation, thus minimizing foreign material and allowing for growth. ... (05 Mar 2000) ...

sennoside A
Sennoside B ... Two anthraquinone glucosides that are the laxative principles of senna. ... (05 Mar 2000) ...

sensate
Able to perceive touch and other sensations; used in reference to patients who have had partial nerve or spinal cord injuries. ... (05 Mar 2000) ...

sensation
1. <physiology> An impression, or the consciousness of an impression, made upon the central nervous organ, through the medium of a sensory or afferent nerve or one of the organs of sense; a feeling, or state of consciousness, whether agreeable or disagreeable, produced either by an external object (stimulus), or by some change in the internal …

sensation disorders
Disorders in the physical response to external or internal stimuli to the senses. ... (12 Dec 1998) ...

sensation time
The minimal time a visual image must be exposed in order to be perceived. ... (05 Mar 2000) ...

sensationalism
1. <psychology> The doctrine held by Condillac, and by some ascribed to Locke, that our ideas originate solely in sensation, and consist of sensations transformed; sensualism; opposed to intuitionalism, and rationalism. ... 2. The practice or methods of sensational writing or speaking; as, the sensationalism of a novel. ... Source: Websters Dic …

sense
1. <physiology> A faculty, possessed by animals, of perceiving external objects by means of impressions made upon certain organs (sensory or sense organs) of the body, or of perceiving changes in the condition of the body; as, the senses of sight, smell, hearing, taste, and touch. See Muscular sense, under Muscular, and Temperature sense. 'Le …

sense of equilibrium
The sense that makes possible a normal physiologic posture. ... Synonym: static sense. ... (05 Mar 2000) ...

sense of identity
One's sense of his or her own identity or psychological selfhood. ... (05 Mar 2000) ...

sense organs
The organs of special sense, including the eye, ear, olfactory organ, taste organs, and the accessory structures associated with these organs. ... Synonym: organa sensuum. ... (05 Mar 2000) ...

sense strand
<molecular biology> The strand of DNA which is used during transcription to make mRNA. The mRNA made thus has the sequence of the antisense strand of DNA, and it codes for a sense strand of polypeptide (which eventually becomes a protein or part of a protein) during translation. ... (09 Oct 1997) ...

sensibility
Origin: Cf. F. Sensibilite, LL. Sensibilitas. ... 1. <physiology> The quality or state of being sensible, or capable of sensation; capacity to feel or perceive. ... 2. The capacity of emotion or feeling, as distinguished from the intellect and the will; peculiar susceptibility of impression, pleasurable or painful; delicacy of feeling; quick em …

sensible
1. Perceptible to the senses. ... 2. Capable of sensation. ... Synonym: sensitive. ... 4. Having reason or judgment; intelligent. ... Origin: L. Sensibilis, fr. Sentio, to feel, perceive ... (05 Mar 2000) ...

sensible heat
The amount of heat that, when absorbed by a substance, causes a rise in temperature. ... Compare: latent heat. ... (05 Mar 2000) ...

sensible perspiration
The perspiration excreted in large quantity, or when there is much humidity in the atmosphere, so that it appears as moisture on the skin. ... (05 Mar 2000) ...

sensible temperature
The atmospheric temperature as felt by the individual, supposed to be that recorded by the wet-bulb thermometer. ... (05 Mar 2000) ...

sensiferous
Conducting a sensation. ... Origin: L. Sensus, sense, + fero, to carry ... (05 Mar 2000) ...

sensigenous
Giving rise to sensation. ... Origin: L. Sensus, sense, + G. -gen, to produce ... (05 Mar 2000) ...

sensimeter
An instrument that measures degrees of cutaneous sensation. ... Origin: L. Sensus, sense, + G. Metron, measure ... (05 Mar 2000) ...

sensitisation
1. <immunology> The administration of antigen to induce a primary immune response, priming, immunisation. ... 2. The exposure to allergen that results in the development of hypersensitivity. ... 3. <technique> The coating of erythrocytes with antibody so that they are subject to lysis by complement in the presence of homologous antigen, t …

sensitise
To render sensitive; to induce acquired sensitivity, to immunise. ... See: sensitised antigen. ... (05 Mar 2000) ...

sensitised antigen
The complex formed when antigen combines with specific antibody; so called because the antigen, by the mediation of antibody, is rendered sensitive to the action of complement. ... (05 Mar 2000) ...

sensitised cell
A cell, including a bacterial cell, that has combined with specific antibody to form a complex capable of reacting with complement components, a small, 'committed,' cell derived, by division and differentiation, from a transformed lymphocyte, a cell that has been either exposed to antigen or opsonised with antibodies and/or complement. ... (05 Mar 2 …

sensitised culture
A live culture of an organism to which a specific antiserum is added; after the mixture is incubated for several minutes (during which the antibody in the serum combines with the organisms), the excess serum is removed by means of centrifugation, washing in physiologic saline solution, and recentrifugation; the sensitised organisms may then be resu …

sensitiser
Synonym: antibody. ... 2. A substance that causes dermatitis only after alteration (sensitization) of the skin by previous exposure to that substance. ... (05 Mar 2000) ...

sensitive
1. Having sense of feeling; possessing or exhibiting the capacity of receiving impressions from external objects; as, a sensitive soul. ... 2. Having quick and acute sensibility, either to the action of external objects, or to impressions upon the mind and feelings; highly susceptible; easily and acutely affected. 'She was too sensitive to abuse and …

sensitive species
<ecology, zoology> Species that can only survive within a narrow range of environmental conditions and whose disappearance from an area is an index of pollution or other environmental change. ... Those species which rely on specific habitat conditions that are limited in abundance, restricted in distribution, or are particularly sensitive to d …

sensitivity
<microscopy> Similar to responsively of an image pickup tube but numerically different. The signal current developed in an image pickup tube per unit incident radiation density (watt per unit area) or illuminance (lux on the faceplate). Unless otherwise specified, the radiation is understood to be that of an unfiltered incandescent source at …

sensitivity and specificity
Measures for assessing the results of diagnostic and screening tests. Sensitivity represents the proportion of truly diseased persons in a screened population who are identified as being diseased by the test. It is a measure of the probability of correctly diagnosing a condition. Specificity is the proportion of truly nondiseased persons who are so …

sensitivity training group
A group in which members seek to develop self-awareness and an understanding of group processes rather than to obtain therapy for an emotional disturbance. ... See: encounter group, personal growth laboratory. ... (05 Mar 2000) ...

sensitivity training groups
A group of people who meet in an unstructured setting to learn about themselves, interpersonal relationships, and group processes and about larger social systems. ... (12 Dec 1998) ...

sensitization
Immunization, especially with reference to antigens (immunogens) not associated with infection; the induction of acquired sensitivity or of allergy. ... (05 Mar 2000) ...

sensitizing dose
In experimental anaphylaxis, the antigenic inoculum that renders an animal susceptible (sensitive) to anaphylactic shock following a subsequent inoculum (shocking dose) of the same antigen (anaphylactogen). ... (05 Mar 2000) ...

sensitizing injection
An injection that sensitises a person so that subsequent exposure to the antigen (allergen) evokes an allergic response. ... (05 Mar 2000) ...

sensitizing substance
Synonym for complement-fixing antibody ... Antibody that combines with and sensitises antigen leading to the activation of complement, which may result in cell lysis. ... Synonym: CF antibody, sensitizing substance. ... (05 Mar 2000) ...

sensitometry
In radiology, the procedure of measuring film response to radiation. ... Origin: sensitivity + G. Metron, measure ... (05 Mar 2000) ...

sensomobile
Capable of movement in response to a stimulus. ... (05 Mar 2000) ...

sensomobility
The state of being sensomobile. ... (05 Mar 2000) ...

sensomotor
Synonym for sensorimotor ... Both sensory and motor; denoting a mixed nerve with afferent and efferent fibres. ... Synonym: sensomotor. ... (05 Mar 2000) ...

sensor
A device designed to respond to physical stimuli such as temperature, light, magnetism, or movement, and transmit resulting impulses for interpretation, recording, movement, or operating control. ... Origin: see sense ... (05 Mar 2000) ...

sensori-
Sensory. ... Origin: L. Sensorius ... (05 Mar 2000) ...

sensorial
Relating to the sensorium. ... (05 Mar 2000) ...

sensoriglandular
Relating to glandular secretion excited by stimulation of the sensory nerves. ... (05 Mar 2000) ...

sensorimotor
Both sensory and motor; denoting a mixed nerve with afferent and efferent fibres. ... Synonym: sensomotor. ... (05 Mar 2000) ...

sensorimotor area
The precentral and postcentral gyri of the cerebral cortex. ... (05 Mar 2000) ...

sensorimotor theory
In the developmental theory of Piaget, the postulation that during the first 18 months of life there occurs a transformation of action into thought; at first there is a gradual shift from inborn to acquired behaviour, then from body-centreed to object-centreed activity, ultimately permitting intentional behaviour and inventive thinking. ... (05 Mar …

sensorimuscular
Denoting muscular contraction in response to a sensory stimulus. ... (05 Mar 2000) ...

sensorineural deafness
Hearing impairment due to disorders of the cochlear division of the 9th cranial nerve (auditory nerve), the cochlea, or the retrocochlear nerve tracts, as opposed to conductive deafness. ... (05 Mar 2000) ...

sensorineural hearing loss
<neurology> A form of deafness that occurs due to dysfunction of the auditory nerve (cranial nerve VIII). ... (27 Sep 1997) ...

sensorium
Origin: L, fr. Sentire, sensum, to discern or perceive by the senses. ... <physiology> The seat of sensation; the nervous center or centers to which impressions from the external world must be conveyed before they can be perceived; the place where external impressions are localised, and transformed into sensations, prior to being reflected to …

sensorivascular
Synonym for sensorivasomotor ... Denoting contraction or dilation of the blood vessels occurring as a sensory reflex. ... Synonym: sensorivascular. ... (05 Mar 2000) ...

sensorivasomotor
Denoting contraction or dilation of the blood vessels occurring as a sensory reflex. ... Synonym: sensorivascular. ... (05 Mar 2000) ...

sensory
<otolaryngology> Pertaining to or subserving sensation. ... Origin: L. Sensorius ... (18 Nov 1997) ...

sensory amblyopia
A suppression of central vision in one eye due to faulty image formation; for example, by a corneal scar, a cataract, or a droopy eyelid. ... Synonym: deprivation amblyopia. ... (05 Mar 2000) ...