| refl | reflex |
|---|---|
| RIP | radioimmunoprecipitation; reflex inhibiting pattern; respiratory inductance plethysmography |
| RR | radiation reaction; radiation response; rate ratio; rational recovery [group]; recovery room; relati... |
| RRI | recurrent respiratory infection; reflex relaxation index; relative response index |
| RSD | reflex sympathetic dystrophy; relative standard deviation |
| Mayer's reflex | Opposition and adduction of the thumb with flexion at its metacarpophalangeal joint and extension at its interphalangeal joint, when firm passive flexion of the third, fourth, or fifth finger is made; the reflex is present normally but is absent in pyramidal lesions. Synonym: finger-thumb reflex, Mayer's reflex. (05 Mar 2000) |
|---|---|
| patellar reflex | A sudden contraction of the anterior muscles of the thigh, caused by a smart tap on the patellar tendon while the leg hangs loosely at a right angle with the thigh. Synonym: knee jerk, knee phenomenon, knee reflex, knee-jerk reflex, patellar tendon reflex, quadriceps reflex. (05 Mar 2000) |
| patellar tendon reflex | A sudden contraction of the anterior muscles of the thigh, caused by a smart tap on the patellar tendon while the leg hangs loosely at a right angle with the thigh. Synonym: knee jerk, knee phenomenon, knee reflex, knee-jerk reflex, patellar tendon reflex, quadriceps reflex. (05 Mar 2000) |
| patello-adductor reflex | Crossed adduction of the leg on tapping the quadriceps tendon. (05 Mar 2000) |
| visceral traction reflex | Laryngeal spasm precipitated during an operation by traction on the stomach, gallbladder, or appendiceal mesentery. (05 Mar 2000) |
| viscerogenic reflex | Any of a number of reflex's, such as headache, cough, disturbed pulse, etc., caused by disordered conditions of any of the viscera. (05 Mar 2000) |
| visceromotor reflex | Contraction of the muscles of the thorax or abdomen in response to a stimulus from one of the viscera therein. (05 Mar 2000) |
| visceropannicular reflex | Contraction of the panniculus carnosus muscle in the cat and certain other animals, in response to a stimulus applied to an abdominal viscus; the centre for the reflex is in the spinal cord, the afferent pathway is the splanchnic nerves. (05 Mar 2000) |
| viscerosensory reflex | An area of pain or sensitivity to pressure in the external body wall due to disease of one of the viscera. See: Head's lines. (05 Mar 2000) |
| viscerotrophic reflex | A degenerative change in the skeletal soft tissues consequent upon a chronic inflammatory condition of any of the thoracic or abdominal viscera. (05 Mar 2000) |
| Remak's reflex | Plantar flexion of the first three toes and, sometimes, the foot with extension of the knee induced by stroking of the upper anterior surface of the thigh; it occurs when the conducting paths in the cord are interrupted. (05 Mar 2000) |
| Pavlov's reflex | Peripheral vasoconstriction and a rise in blood pressure in response to a fall in pressure in the great veins. Synonym: Pavlov's reflex. (05 Mar 2000) |
| visual orbicularis reflex | Contraction of the orbicularis oculi muscle caused by a sudden visual stimulus. See: wink reflex. (05 Mar 2000) |
| renal reflex | Anuria caused by injury to a remote part of the body or by disease or injury to one kidney or ureter. (05 Mar 2000) |
| pectoral reflex | Contraction of the pectoralis major muscle elicited by tapping the seventh rib between the anterior and the medial axillary lines while the arm is abducted; contraction of the deltoid and biceps may also occur. Synonym: costopectoral reflex. (05 Mar 2000) |