27 Questions
What is the function of intrinsic factor secreted in the small intestine?
Assists in the absorption of vitamin B12
Which organ produces bile salts to emulsify lipids for digestion?
Liver
What is the primary function of the pancreas in the digestive system?
Produce digestive enzymes and bicarbonate
Which hormone stimulates the release of gastric acid in the stomach?
Gastrin
What type of reflex is characterized by local stimulus and result within the digestive tract?
Short reflex
What is the pH range of saliva, which contains water, ions, enzymes, and glycoproteins?
6.35-6.85
What is the primary function of the digestive system?
To break down food and absorb nutrients
Which of the following is NOT a part of the digestive system?
Lungs
What is the function of the muscularis layer in the digestive tract?
To facilitate mechanical digestion and peristalsis
Which of the following is NOT an accessory digestive organ?
Pancreas
What is the function of the enteric nervous system?
To regulate the digestive system's motility and secretions
What is the primary function of the mouth in the digestive process?
To ingest, chew, and moisten food
What is the function of the lower esophageal sphincter?
Controls food entering the stomach
Which part of the stomach is responsible for holding undigested food and gases?
Fundus
What is the primary function of parietal cells in the stomach?
Produce hydrochloric acid
Which phase of gastric secretion is triggered by the sight, smell, taste, or thought of food?
Cephalic phase
What is the primary function of mucosal barrier in the stomach?
Protect against acidic environment
Which part of the small intestine is responsible for most absorption and is the longest segment?
Ileum
What initiates mechanical digestion in the small intestine by moving chyme through peristalsis?
Motilin hormone
What prevents simultaneous passage of feces and gas in the rectum?
Lateral bends
What is the primary function of intrinsic factor in the stomach?
Essential for life
What is the primary function of the internal anal sphincter and external anal sphincter?
To remain normally closed and prevent leakage
Which of the following statements about the bacterial flora in the digestive system is correct?
They are constantly tested by dendrites to ensure they are not pathogenic.
What is the primary function of the valsalva maneuver?
To voluntarily increase intra-abdominal pressure for the removal of feces
Which of the following statements about the liver is correct?
The liver processes and removes toxins from the body.
What is the primary function of bile in the digestive system?
To emulsify lipids for better absorption
Which of the following statements about the pancreas is correct?
It has both exocrine and endocrine functions related to digestion.
Test your knowledge on the purpose and structures of the digestive system. Learn about the gastrointestinal tract, including the mouth, esophagus, stomach, and intestines, as well as accessory organs like the liver and pancreas.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
