Question

1. What is the name of the mechanism that inhibits gastric motility and the secretion of gastric acid?

• Pendular movement
• Segmentation
• Enterogastric reflex
• Gastrointestinal reflex

2. The pyloric sphincter controls the flow of chyme as it passes out of the stomach and into the small intestine. Which of the following is a possible effect of a malfunctioning pyloric sphincter?

• Inadequate nutrient digestion and absorption because the small intestine doesn't have enough time to digest food
• Decreased intestinal peristaltic movements because these movements are connected to the pyloric sphincter
• Increased segmentation movements as the small intestine tries to stimulate the sphincter
• The food moving back into the esophagus as a last resort

3. Which term describes movement within the small intestine caused by contraction and relaxation of the longitudinal muscles?

• Enterogastric reflex
• Peristalsis
• Segmentation
• Pendular movement

4. Which movement within the small intestine is described as the contraction of circular smooth muscles that constrict the intestines into segments?

• Segmentation
• Pendular Movement
• Peristalsis
• Enterogastric motility

5. What propels food through the small intestine?

• Segmentation
• Enterogastric reflex
• Peristalsis
• Pendular movements

Answer 1

1) The name of the mechanismthat inhibits gastric motility and the secretion of gastric acid is the

Enterogastric reflex.

2) The pyrolic sphincter controls the flow of chyme as it passes out of the stomach and into the small intestine. The possible effect of the malfunction of the pyloric sphincter is:

The food moving back into the oesophagus at a last resort (Since pyloric sphincter acts as a valve between the stomach and the duodenum of small intestine that opens and closes to allow the partially digested into small intestine).

3) The term describing the movement in the small intestine caused by contraction and relaxation of the longitudinal muscles:

Peristalsis

4) The movement within the small intestine described as the contraction of smooth muscles that constrict the intestine into segments :

Segmentation

5) The propelling of food through the small intestine is called:

Peristalsis.