Multiple Choice
What stimulates the defecation reflex?
A) pressure on the internal anal sphincter
B) peristaltic contraction of the sigmoid colon
C) increase in osmolarity of the rectum
D) distention of the descending colon
E) distention of the rectum
Correct Answer:

Verified
Correct Answer:
Verified
Q78: Regulation of the gastrointestinal tract involves an
Q128: The primary function of the gastrointestinal tract
Q147: In order to begin the process of
Q148: What are Kupffer cells?<br>A)hepatocytes<br>B)cells of the stomach
Q149: Which hormone stimulates gall bladder contraction?<br>A)cholecystokinin<br>B)motilin<br>C)gastrin<br>D)glucose- dependent
Q150: What layer of the mucosa is connective
Q151: Gastric reflux occurs when material flows backwards
Q154: What do the secretory cells in the
Q155: Which of the following is the correct
Q156: The presence of food in the duodenum