ABDOMINAL
GASTROINTESTINAL
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
When a food is present in the intestine, the intestinal nervous system promotes a type of motility.
|
|
|
It is a reflex response triggered by afferent impulses from the trigeminal, glossopharyngeal, and vagus nerves.
|
|
|
It is a reflex response that begins when the intestinal wall is stretched by the luminal contents, and it occurs in all segments of the digestive tract from the esophagus to the rectum.
|
|
|
None of the above
|
Detailed explanation-1: -(payr-ih-STAL-sis) The rippling motion of muscles in the intestine or other tubular organs characterized by the alternate contraction and relaxation of the muscles that propel the contents onward.
Detailed explanation-2: -Peristalsis is the automatic wave-like movement of the muscles that line your gastrointestinal tract. Peristalsis moves food through your digestive system, beginning in your throat when you swallow and continuing through your esophagus, stomach and intestines while you digest.
Detailed explanation-3: -Peristalsis is the downward wave-like movements of smooth muscles of the GI tracts that propels food bolus from mouth to GI tract. Antiperistalsis is the upward or backward wave-like movements of smooth muscle that propels food from stomach to mouth against the normal process.
Detailed explanation-4: -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.