| AAR | active avoidance reaction; acute articular rheumatism; antigen-antiglobulin reaction |
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| APR | abdominoperineal resection; absolute proximal reabsorption; acute phase reaction or reactant; amebic... |
| CFR | case-fatality ratio; citrovorum-factor rescue; Code of Federal Regulations; complement-fixation reac... |
| CRT | cadaveric renal transplant; cardiac resuscitation team; cathode-ray tube; certified; Certified Recor... |
| FR | failure rate; film-screen radiograph; fasciculus retroflexus; febrile reaction; feedback regulation;... |
| superior branch of the superior gluteal artery | <anatomy, artery> Runs between gluteus medius and minimus muscles, supplying both, and continuing to reach tensor fascia lata muscle. Synonym: ramus superior arteriae gluteae superioris. (05 Mar 2000) |
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| superior gluteal artery | <anatomy, artery> Origin, internal iliac; distribution, gluteal region; anastomoses, lateral sacral, inferior gluteal, internal pudendal, deep circumflex iliac, lateral circumflex femoral. Synonym: arteria glutea superior. (05 Mar 2000) |
| superior gluteal nerve | <anatomy, nerve> Arises from the fourth and fifth lumbar and first sacral nerves, and supplies the gluteus medius and minimus and tensor fasciae latae muscles (abductors and medial rotators of the hip joint). A lesion of this nerve causes the pelvis to drop on the unsupported side when the foot is lifted off the ground (Trendelenburg sign). Synonym: nervus gluteus superior. (05 Mar 2000) |
| superior gluteal veins | The veins that accompany the superior gluteal artery, entering the pelvis as two veins which unite into one and empty into the internal iliac vein. Synonym: venae gluteae superiores. (05 Mar 2000) |
| inferior branch of superior gluteal artery | <anatomy, artery> Distribution: gluteus medius and minimus muscles; anastomosis: lateral circumflex femoral artery. Synonym: ramus inferior arteriae gluteae superioris. (05 Mar 2000) |
| inferior gluteal artery | <anatomy, artery> Origin, internal iliac; distribution, hip joint and gluteal region; anastomoses, branches of internal pudendal, lateral sacral, superior gluteal, obturator, medial and lateral circumflex femoral. Synonym: arteria glutea inferior, arteria ischiadica, arteria ischiatica. (05 Mar 2000) |
| inferior gluteal nerve | <anatomy, nerve> Arises from the fifth lumbar and first and second sacral nerves, and supplies the gluteus maximus muscle. It is subject to injury by compression and ischemia in sedentary individuals, resulting in difficulty in rising from a sitting position and difficulty climbing stairs. Synonym: nervus gluteus inferior. (05 Mar 2000) |
| inferior gluteal veins | The venae comitantes of the inferior gluteal artery uniting at the sciatic foramen to form a common trunk which empties into the internal iliac vein. Synonym: venae gluteae inferiores. (05 Mar 2000) |
| intermuscular gluteal bursa | <anatomy> Two or three small bursae between the tendon of the gluteus maximus and the linea aspera. Synonym: bursa intermuscularis musculorum gluteorum, intermuscular gluteal bursa. (05 Mar 2000) |
| accelerated reaction | A response occurring in a shorter time than expected; the cutaneous manifestations occurring during the period between the second and tenth day following smallpox vaccination; because it is intermediate between a primary reaction and an immediate reaction, it is regarded as evidence of some degree of resistance. Synonym: vaccinoid reaction. (05 Mar 2000) |
| acid reaction | Any test by which an acid reaction is recognised such as the change of blue litmus paper to red, an excess of hydrogen ions over hydroxide ions in aqueous solution indicated by a pH value less than 7 (at 22캜). Compare: dissociation constant of water. (05 Mar 2000) |
| acute-phase reaction | <immunology, rheumatology> Refers to the changes in synthesis of certain proteins within the serum during an inflammatory response, which provides rapid protection for the host against microorganisms via non-specific defense mechanisms. It consists of fever, an increase in inflammatory humoral factors, and an increased synthesis by hepatocytes of a number of proteins or glycoproteins usually found in the plasma; the reaction is mediated by endogenous pyrogens, the hypothalamus, adrenal hormones, and other factors. (12 Jul 2000) |
| acute situational reaction | An acute emotional reaction related to extreme environmental stress. Synonym: acute situational reaction. (05 Mar 2000) |
| acute stress reaction | A sudden bout of anxiety that is often accompanied by the features of hyperventilation (tingling around mouth and in fingertips, rapid breathing, faintness or fainting). (27 Sep 1997) |
| addition reaction | <chemistry> Any reaction in which two chemicals combine to form a single chemical. (15 Jan 1998) |