amnion. the innermost fetal membrane, which forms a sac filled with amniotic fluid that surrounds the embryo and later the fetus; as it enlarges it gradually obliterates the chorionic cavity and enfolds the umbilical cord. Called also bag of waters.
cluster breathing. cluster breathing. a breathing pattern in which a closely grouped series of respirations is followed by apnea. The activity is associated with a lesion in the lower pontine region of the brainstem. See also Biot's respiration, Cheyne-Stokes respiration.
Sleep-Disordered Breathing Online Medical Reference - covering Definition through Treatment. Authored by Daniel A. Culver of the Cleveland Clinic. Since the 1970s, physicians have begun to recognize many of the detrimental consequences of sleep disturbances produced by abnormal breathing patterns, termed sleep-disordered breathing (SDB). Menu About Us