Podcast
Questions and Answers
Which of the following organs is NOT a primary digestive organ?
Which of the following organs is NOT a primary digestive organ?
- Stomach
- Small intestine
- Pharynx
- Salivary glands (correct)
What is the primary function of the Meissner plexus in the GI tract?
What is the primary function of the Meissner plexus in the GI tract?
- Absorption of digested end products into the blood or lymph
- Regulation of secretory functions of GI tract (correct)
- Breakdown of food molecules into smaller subunits
- Regulation of movements of GI tract
Which of the following is NOT a function of the GI tract?
Which of the following is NOT a function of the GI tract?
- Respiration (correct)
- Motility
- Secretion
- Absorption
What is the term for the movement of food through the digestive tract?
What is the term for the movement of food through the digestive tract?
Which of the following neurotransmitters is NOT associated with the Auerbach plexus?
Which of the following neurotransmitters is NOT associated with the Auerbach plexus?
What is the name of the nerve plexus that regulates the movements of the GI tract?
What is the name of the nerve plexus that regulates the movements of the GI tract?
What is the approximate volume of saliva secreted per day?
What is the approximate volume of saliva secreted per day?
What is the pH of mixed saliva from all the glands?
What is the pH of mixed saliva from all the glands?
What percentage of saliva is composed of water?
What percentage of saliva is composed of water?
What is the role of lingual lipase in saliva?
What is the role of lingual lipase in saliva?
What is one of the excretory functions of saliva?
What is one of the excretory functions of saliva?
What is the specific gravity of saliva?
What is the specific gravity of saliva?
Which type of nerve fibers inhibit the movements and decrease the secretions of the GI tract?
Which type of nerve fibers inhibit the movements and decrease the secretions of the GI tract?
Which neurotransmitter is secreted by sympathetic nerve fibers to inhibit the GI tract?
Which neurotransmitter is secreted by sympathetic nerve fibers to inhibit the GI tract?
Which nerves carry preganglionic parasympathetic nerve fibers to the mouth and salivary glands?
Which nerves carry preganglionic parasympathetic nerve fibers to the mouth and salivary glands?
Which segment of the spinal cord gives rise to preganglionic sympathetic nerve fibers?
Which segment of the spinal cord gives rise to preganglionic sympathetic nerve fibers?
What is the effect of sympathetic nerve fibers on the sphincters?
What is the effect of sympathetic nerve fibers on the sphincters?
Through which nerve do preganglionic parasympathetic nerve fibers to the esophagus, stomach, small intestine, and upper part of large intestine pass?
Through which nerve do preganglionic parasympathetic nerve fibers to the esophagus, stomach, small intestine, and upper part of large intestine pass?
Where are the pyloric glands located in the stomach?
Where are the pyloric glands located in the stomach?
Which type of cell is responsible for secreting hormones in the stomach?
Which type of cell is responsible for secreting hormones in the stomach?
What is the primary function of gastrin in the stomach?
What is the primary function of gastrin in the stomach?
What is the pH range of gastric juice?
What is the pH range of gastric juice?
What is the approximate daily volume of gastric juice secretion?
What is the approximate daily volume of gastric juice secretion?
What is the process of secreting hydrochloric acid in the stomach?
What is the process of secreting hydrochloric acid in the stomach?
What is the source of carbon dioxide in the parietal cell?
What is the source of carbon dioxide in the parietal cell?
What is the purpose of carbonic anhydrase in the parietal cell?
What is the purpose of carbonic anhydrase in the parietal cell?
What is the fate of the bicarbonate ion generated during the formation of hydrochloric acid?
What is the fate of the bicarbonate ion generated during the formation of hydrochloric acid?
What is the effect of vagal stimulation on the secretion of hydrochloric acid?
What is the effect of vagal stimulation on the secretion of hydrochloric acid?
What is the optimal pH for the activation of pepsinogen?
What is the optimal pH for the activation of pepsinogen?
What is the primary function of pepsin in the digestive process?
What is the primary function of pepsin in the digestive process?
