| mass peristalsis | Forcible peristaltic movements of short duration, occurring only three or four times a day, which move the contents of the large intestine from one division to the next, as from the ascending to the transverse colon. Synonym: mass movement. (05 Mar 2000) |
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| reversed peristalsis | A wave of intestinal contraction in a direction the reverse of normal, by which the contents of the intestine are forced backward. Synonym: antiperistalsis. (05 Mar 2000) |
| peristalsis | <gastroenterology, physiology> The wormlike movement by which the alimentary canal or other tubular organs provided with both longitudinal and circular muscle fibres propel their contents. It consists of a wave of contraction passing along the tube for variable distances. Origin: Gr. Stalsis = contraction (18 Nov 1997) |
| amnesia, retrograde | Amnesia for events that occurred before the onset of amnesia. (12 Dec 1998) |
| retrograde | 1. Moving backward or against the usual direction of flow. 2. Degenerating, deteriorating or catabolic. Origin: L. Gradi = to step (18 Nov 1997) |
| retrograde amnesia | Amnesia in reference to events that occurred before the trauma or disease that caused the condition. (05 Mar 2000) |
| retrograde aortography | Aortography by the injection of contrast medium into the aorta through one of its branches, e.g., the brachial artery, in a direction against normal arterial blood flow. (05 Mar 2000) |
| retrograde axonal transport | <cell biology> The transport of vesicles from the synaptic region of an axon towards the cell body: involves the interaction of MAP1C with microtubules. (11 Jan 1998) |
| retrograde beat | A beat occurring as an electrical activation of a portion of a heart chamber cephalad to the chamber of origin, e.g., an atrial beat triggered by an impulse originating in the ventricle. (05 Mar 2000) |
| retrograde block | Impaired conduction backward from the ventricles or A-V node into the atria. (05 Mar 2000) |
| retrograde cardioplegia | Cardioplegia effected by delivery of solutions via the coronary veins. (05 Mar 2000) |
| retrograde chromatolysis | Synonym: central chromatolysis. (05 Mar 2000) |
| retrograde conduction | Conduction backward from the ventricles or from the A-V node into and through the atria. Synonym: retroconduction, ventriculoatrial conduction, V-A conduction. (05 Mar 2000) |
| retrograde degeneration | The series of changes in a neuron following the severing of its axon, including central chromatolysis with displacement of the nucleus. (12 Dec 1998) |
| retrograde ejaculation | <urology> Ejaculation backwards into the bladder instead of forward through the urethra. (11 Jan 1998) |