This glossary of medical terms is a list of definitions about medicine, its sub-disciplines, and related fields. Contents:  A B C D E F G H I J K L M N...

rapid eye movement (REM) sleep. The major feature of RBD is loss of muscle atonia (i.e., the loss of paralysis) during otherwise intact REM sleep (during...

sleeping or waking. The body abruptly loses muscle tone, a state known as REM atonia. In 1953, Professor Nathaniel Kleitman and his student Eugene Aserinsky...

parasomnias, rapid eye movement sleep behavior disorder (RBD) in which muscle atonia is absent is most common in older adults. This allows the individual to...

which is characterized by the complete quieting of the mind and by muscle atonia. R.E.M. sleep cycles are book-ended by N.R.E.M. stages. It is precisely...

concentration on muscles to compensate for lack of innervation. Hypotonia or atonia – Tone is not velocity dependent. Hyporeflexia - Along with deep reflexes...

density than non-narcoleptics, but also experience more REM sleep without atonia. Many narcoleptics have sufficient REM sleep, but do not feel refreshed...

transition from wake to sleep, and during REM sleep, there is a state of muscle atonia (paralysis), resulting in an absence of signals in the EMG. EOG (electrooculography)...

leads the body to shut down from the lack of oxygen. Laughter can cause atonia and collapse ("agelastic syncope"), which in turn can cause trauma. See...

Uterine atony is the failure of the uterus to contract adequately following delivery. Contraction of the uterine muscles during labor compresses the blood...