| MA | malignant arrhythmia; management and administration; mandelic acid; masseter; Master of Arts; matern... |
|---|---|
| misc | miscarriage; miscellaneous |
| MSR | macrophage scavenger receptor; Member of the Society of Radiographers; monosynaptic reflex; muscle s... |
| PSR | pain sensitivity range; perspective surface rendering; portal systemic resistance; proliferative sic... |
| SNST | sciatic nerve stretch test |
| MU | Mega Units |
|---|---|
| Mpa | Mega Pascals |
| Mb | mega-base pairs |
| PSR | pulmonary stretch receptor |
| SARs | Slowly adapting pulmonary stretch receptors |
| mega- | <physics, prefix> Metric prefix indicating 1,000,000 times a given quantity. For example, a megawatt is 1,000,000 watts. (29 Oct 1998) |
|---|---|
| mega-oesophagus | <radiology> Achalasia, Chagas disease, idiopathic pseudo-obstruction, amyloidosis, Ehlers-Danlos syndrome, presbyesophagus (uncommon), oesophageal dysmotility (usually mild to moderate dilatation) (12 Dec 1998) |
| reflex, stretch | Reflex contraction of a muscle in response to stretching, which stimulates muscle proprioceptors. (12 Dec 1998) |
| pulmonary stretch receptors | Stretch receptors found in the bronchi and bronchioles. Pulmonary stretch receptors are sensors for a reflex which stops inspiration. In humans, the reflex is protective and is probably not activated during normal respiration. (12 Dec 1998) |
| stretch | 1. To reach out; to extend; to put forth. "And stretch forth his neck long and small." (Chaucer) "I in conquest stretched mine arm." (Shak) 2. To draw out to the full length; to cause to extend in a straight line; as, to stretch a cord or rope. 3. To cause to extend in breadth; to spread; to expand; as, to stretch cloth; to stretch the wings. 4. To make tense; to tighten; to distend forcibly. "The ox hath therefore stretched his yoke in vain." (Shak) 5. To draw or pull out to greater length; to strain; as, to stretch a tendon or muscle. "Awake, my soul, stretch every nerve." (Doddridge) 6. To exaggerate; to extend too far; as, to stretch the truth; to stretch one's credit. "They take up, one day, the most violent and stretched prerogative." (Burke) Origin: OE. Strecchen, AS. Streccan; akin to D. Strekken, G. Strecken, OHG. Strecchen, Sw. Stracka, Dan. Straekke; cf. AS. Straeck, strec, strong, violent, G. Strack straight; of uncertain origin, perhaps akin to E. Strong. Cf. Straight. Source: Websters Dictionary (01 Mar 1998) |
| stretch marks | Bands of thin wrinkled skin, initially red but becoming purple and white, which occur commonly on the abdomen, buttocks, and thighs at puberty and/or during and following pregnancy, and result from atrophy of the dermis and overextension of the skin; also associated with ascites and Cushing's syndrome. Synonym: atrophoderma striatum, lineae albicantes, lineae atrophicae, linear atrophy, stretch marks, stria, striae atrophicae, striate atrophy of skin, traction atrophy, vergeture. (05 Mar 2000) |
| stretch receptors | Receptor's that are sensitive to elongation, especially those in Golgi tendon organs and muscle spindles, but also those found in visceral organs such as the stomach, small intestine, and urinary bladder; these receptor's have the function of detecting elongation, and this distinguishes them from baroreceptors, which actually are activated by stretching of the wall of the blood vessel but whose function is to elicit central reflex mechanism reducing the arterial blood pressure. (05 Mar 2000) |
| stretch reflex | Tonic contraction of the muscles in response to a stretching force, due to stimulation of muscle proprioceptors. Synonym: Liddell-Sherrington reflex, muscular reflex, stretch reflex. (05 Mar 2000) |
| greater cul-de-sac | The portion of the stomach that lies above the cardiac notch. Synonym: fundus gastricus, fundus ventriculi, greater cul-de-sac. (05 Mar 2000) |
| Gruber's cul-de-sac | A lateral diverticulum in the suprasternal space beside the medial extremity of the clavicle behind the sternal attachment of the sternocleidomastoid muscle. (05 Mar 2000) |
| conjunctival cul-de-sac | The space formed by the junction of the bulbar and palpebral portions of the conjunctiva, that of the upper lid being the fornix conjunctivae superior and that of the lower lid the fornix conjunctivae inferior. Synonym: fornix conjunctivae, conjunctival cul-de-sac, retrotarsal fold. (05 Mar 2000) |
| cul-de-sac | 1. A blind pouch or tubular cavity closed at one end; e.g., diverticulum; caecum. Synonym: rectouterine pouch. Origin: Fr. Bottom of a sack (05 Mar 2000) |
| cul-de-sac smear | A cytologic specimen of material obtained by aspirating the pouch of Douglas from the posterior vaginal fornix and prepared by smearing, centrifuging, or filtering; used principally for ovarian cancer. (05 Mar 2000) |
| Douglas' cul-de-sac | <anatomy> A pocket formed by the deflection of the peritoneum from the rectum to the uterus. Synonym: excavatio rectouterina, cavum douglasi, cul-de-sac, Douglas' cul-de-sac, Douglas' pouch, pouch of Douglas, rectovaginouterine pouch. (05 Mar 2000) |
| lesser cul-de-sac | The initial portion of the pyloric part of the stomach, which may temporarily become partially or completely shut off from the remainder of the stomach during digestion by peristaltic contraction of the prepyloric "sphincter"; it is demarcated, sometimes, from the second part of the pyloric part of the stomach (pyloric canal) by a slight groove. Synonym: antrum pyloricum, antrum, lesser cul-de-sac. (05 Mar 2000) |
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