Podcast
Questions and Answers
Functions of the digestive tract from beginning to end
Functions of the digestive tract from beginning to end
- Prehension, mastication, absorption, chemical digestion, elimination of wastes
- Prehension, mastication, chemical digestion, absorption, elimination of wastes (correct)
- Prehension, mastication, chemical digestion, elimination of wastes, absorption
- -
What does mylase break down
What does mylase break down
- Starch (correct)
- Lipids
- Proteins
- -
[during peristalsis] what moves the food bolus towards the stomach?
[during peristalsis] what moves the food bolus towards the stomach?
- Contraction of longitudinal muscles and relaxation of the circular muscles
- Relaxation of longitudinal muscles and contraction of the circular muscles (correct)
- Pronation of longitudinal muscles and contraction of the circular muscles
- Relaxation of longitudinal muscles and relaxation of the circular muscles
When the peristaltic wave reaches the lower end of the esophagus, what happens that allows food to pass into the stomach?
When the peristaltic wave reaches the lower end of the esophagus, what happens that allows food to pass into the stomach?
Within the abdominal cavity, the surface of the organs are covered by a serous membrane. What is it called?
Within the abdominal cavity, the surface of the organs are covered by a serous membrane. What is it called?
What is the abdominal body wall lined by?
What is the abdominal body wall lined by?
Which of the following corresponds to the mesentery
Which of the following corresponds to the mesentery
Which of the following corresponds with the omentum
Which of the following corresponds with the omentum
Which of the following secretes intrinsic factor which is necessary for the absorption of vitamin B12 in the small intestine
Which of the following secretes intrinsic factor which is necessary for the absorption of vitamin B12 in the small intestine
The fundus relaxes with swallowing and allows for filling, What inhibits muscle activity of the fundus and allows relaxation and filling and stimulates the mixing activity in the pyloric antrum?
The fundus relaxes with swallowing and allows for filling, What inhibits muscle activity of the fundus and allows relaxation and filling and stimulates the mixing activity in the pyloric antrum?
The body of the stomach relaxes with swallowing but also contracts to help mix food. While peristalsis moves food into the stomach, what propels the food from the cardia to the antrum?
The body of the stomach relaxes with swallowing but also contracts to help mix food. While peristalsis moves food into the stomach, what propels the food from the cardia to the antrum?
The body of the stomach relaxes with swallowing but also contracts to help mix food. While peristalsis moves food into the stomach, what mixes and grinds?
The body of the stomach relaxes with swallowing but also contracts to help mix food. While peristalsis moves food into the stomach, what mixes and grinds?
In the pyloric antrum, what stimulates grinding and mixing activity?
In the pyloric antrum, what stimulates grinding and mixing activity?
In the pylorus, which muscle layer maintains a constant tone during stomach contractions?
In the pylorus, which muscle layer maintains a constant tone during stomach contractions?
What does excess stomach acid in the duodenum stimulate the release of from the duodenum? (which causes the fundus to relax and inhibits peristalsis of gastric body and antrum resulting in slowing of gastric emptying)
What does excess stomach acid in the duodenum stimulate the release of from the duodenum? (which causes the fundus to relax and inhibits peristalsis of gastric body and antrum resulting in slowing of gastric emptying)
Large amounts of proteins in the duodenum also slow gastric emptying by stimulating the release of a hormone that decreases the contraction of the gastric fundus, body and antrum. What is the name of this hormone?
Large amounts of proteins in the duodenum also slow gastric emptying by stimulating the release of a hormone that decreases the contraction of the gastric fundus, body and antrum. What is the name of this hormone?
[In the gastric glands of the fundus and body] Which of the following secretes both hydrochloric acid and intrinsic factor (not in cats)
[In the gastric glands of the fundus and body] Which of the following secretes both hydrochloric acid and intrinsic factor (not in cats)
[in the gastric glands of the fundus and body] Which of the following produces pepsinogen?
[in the gastric glands of the fundus and body] Which of the following produces pepsinogen?
Which of the following does gastrin (secreted by the G cells) stimulate?
Which of the following does gastrin (secreted by the G cells) stimulate?
What does acetylcholine from cholinergic neurons mainly stimulate?
What does acetylcholine from cholinergic neurons mainly stimulate?
What does histamine secreted by enterochromaffin-like (ECL) cells mainly stimulate?
What does histamine secreted by enterochromaffin-like (ECL) cells mainly stimulate?
Identify; contractions of smooth muscle in the walls of the GI tract that crush, mix and propel its contents
Identify; contractions of smooth muscle in the walls of the GI tract that crush, mix and propel its contents
Which of the following corresponds to the breakdown of food via mechanical and chemical means, into smaller soluble particles
Which of the following corresponds to the breakdown of food via mechanical and chemical means, into smaller soluble particles
Which of the following corresponds to the delivery of enzymes, mucus, and ions into the lumen of the GI tract and hormones into the blood
Which of the following corresponds to the delivery of enzymes, mucus, and ions into the lumen of the GI tract and hormones into the blood
Which of the following corresponds to the transport of water, ions and nutrients from the lumen, across the epithelium and into the blood
Which of the following corresponds to the transport of water, ions and nutrients from the lumen, across the epithelium and into the blood
