| apnea | <clinical sign> Cessation of breathing. (18 Nov 1997) |
|---|---|
| central apnea | Apnea as the result of medullary depression which inhibits respiratory movement. (05 Mar 2000) |
| sleep apnea | Temporary stoppage of breathing during sleep, often resulting in daytime sleepiness. (12 Dec 1998) |
| sleep apnea syndrome | <syndrome> A disorder characterised by multiple episodes of partial or complete cessation of respiration during sleep. (05 Mar 2000) |
| sleep apnea syndromes | Disorders involving apneic episodes during sleep. They may be due to cessation of diaphragmatic movement, obstruction of upper airway air flow, or a combination of these, and may be associated with hypersomnolence, insomnia, or obesity. (12 Dec 1998) |
| sleep-induced apnea | Apnea resulting from failure of the respiratory centre to stimulate adequate respiration during sleep; divided into respiratory pause (cessation of air flow for less than 10 seconds) and apneic pause (cessation of air flow greater than 10 seconds). (05 Mar 2000) |
| deglutition apnea | Inhibition of breathing during swallowing. (05 Mar 2000) |
| induced apnea | Intentional respiratory arrest during general anaesthesia produced by hypocapnia, a muscle relaxant drug, respiratory centre depression, or sudden cessation of controlled respiration. (05 Mar 2000) |
| obstructive apnea | Peripheral apnea, apnea either as the result of obstruction of the air passages or inadequate respiratory muscle activity. (05 Mar 2000) |
| abdominocardiac reflex | Mechanical stimulation (usually distention) of abdominal viscera causing changes (usually a slowing) in the heart rate or the occurrence of extrasystoles. (05 Mar 2000) |
| Abrams' heart reflex | A contraction of the myocardium when the skin of the precordial region is irritated. (05 Mar 2000) |
| accommodation reflex | Increased convexity of the lens, due to contraction of the ciliary muscle and relaxation of the suspensory ligament, to maintain a distinct retinal image. (05 Mar 2000) |
| Achilles reflex | A contraction of the calf muscles when the tendo calcaneus is sharply struck. Synonym: ankle jerk, ankle reflex, tendo Achillis reflex, triceps surae reflex. (05 Mar 2000) |
| acousticopalpebral reflex | A form of the wink reflex in which there is a contraction, sometimes very slight, of the orbicularis palpebrarum muscle when a sudden noise is made close to the ear; it is absent in labyrinthine disease with total deafness. Synonym: acousticopalpebral reflex, auropalpebral reflex, cochleo-orbicular reflex, startle reflex. (05 Mar 2000) |
| acquired reflex | A reflex that is gradually developed by training and association through the frequent repetition of a definite stimulus. See: conditioning. Synonym: acquired reflex, behaviour reflex, trained reflex. (05 Mar 2000) |