Peristalsis vs. Segmentation

Peristalsisnoun

(medicine) The rhythmic, wave-like contraction and relaxation of muscles so as to propagate motion, as of food in the digestive tract.

Peristalsisnoun

Peristaltic contraction or action.

Peristalsisnoun

the process of wave-like muscle contractions of the alimentary tract that moves food along

Peristalsis

Peristalsis is a radially symmetrical contraction and relaxation (which is expansion) of muscles that propagates in a wave down a tube, in an anterograde direction. Peristalsis is progression of coordinated contraction of involuntary circular muscles, which is preceded by a simultaneous contraction of the longitudinal muscle and relaxation of the circular muscle in the lining of the gut.In much of a digestive tract such as the human gastrointestinal tract, smooth muscle tissue contracts in sequence to produce a peristaltic wave, which propels a ball of food (called a bolus before being transformed into chyme in the stomach) along the tract.

Segmentationnoun

The act or an instance of dividing into segments

Segmentationnoun

The state of being divided into segments

Segmentationnoun

The partitioning of an image into groups of pixels

Segmentationnoun

The act or process of dividing into segments; specifically (Biol.), a self-division into segments as a result of growth; cell cleavage; cell multiplication; endogenous cell formation.

Segmentationnoun

(embryology) the repeated division of a fertilised ovum

Segmentationnoun

the act of dividing or partitioning; separation by the creation of a boundary that divides or keeps apart