Peristalsis is a symmetrical contraction of muscles which propagates in a wave down the muscular tube, more specifically the esophagus. In humans, peristalsis is found in the contraction of smooth muscles to propel contents through the digestive tract.
In much of the gastrointestinal tract, smooth muscles contract in sequence to produce a peristaltic wave which forces a ball of food (called a bolus while in the esophagus and gastrointestinal tract and chyme in the stomach) along the gastrointestinal tract. Peristaltic movement is initiated by circular smooth muscles contracting behind the chewed material to prevent it from moving back into the mouth, followed by a contraction of longitudinal smooth muscles which pushes the digested food forward.
Peristalsis
Peristalsis
muscular system
Peristalsis.
Peristalsis is a distinctive pattern of smooth muscle contractions that propels food through the esophagus and intestines.radially symmetrical contraction and relaxation of muscles which propagates in a wave down a muscular tube, in an anterograde fashion.
A verb is an action word; it propels the sentence; The boy runs down the hill. "runs" is the verb.
peristalsis
peristalsis
Wave action. (Unles you're talking about surfing the web, and then the answer becomes: curiosity ;-)
The Huntress.
"Muscular action reduces air pressure in the mouth, whereupon atmospheric pressure forces the drink up the straw." ~ Wikipedia
lifting heavy objects
Action potentials are found on muscular or neural cells. The propagate along the cells's membrane surface.