Multiple Choice
A bolus is found in which alimentary tract organ or organ(s)?
23. The Digestive System
Introduction to the Digestive System
Back23. The Digestive System
Introduction to the Digestive System
- Open QuestionWhat are the six main processes of the digestive system?
- Multiple Choice
In which the following would you expect the most chemical digestion to occur?
- Open Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
a. The mucosa from the stomach to the anus consists of an inner layer of stratified columnar epithelium.
- Open QuestionMultiple ChoiceMore than one choice may apply.The GI tube tissue layer responsible for the actions of segmentation and peristalsis is thea. serosa.b. mucosa.c. muscularis externa.d. submucosa.
- Open QuestionLabel the three segments of the small intestine in the following figure. a. ___b. ___c. ___
- Open Question
Which of the following statements about accessory organ secretions is not true?
a. Hepatocytes produce bile, which drains out of the liver via the common hepatic ducts.
b. Saliva contains secretory IgA and lysozyme, which play an important role in preventing the growth of pathogenic bacteria in the oral cavity.
c. Pancreatic juice contains digestive enzymes and bicarbonate ions to neutralize the acidic chyme.
d. The gallbladder produces bile, which drains out of the gallbladder via the cystic duct.
- Open Question
Drugs with anticholinergic side effects block ACh receptors in the peripheral nervous system, including those on digestive organs. Predict the effects such drugs would have on motility and secretion on the specific organs of the digestive system.
- Multiple ChoiceWhich sequence below represents the correct order of the tunics of the GI tract, starting from the layer adjacent to the lumen and moving superficially?
- Multiple Choice
Of the following functions of the digestive system, which function is the responsibility of only one organ?
- Open QuestionWhat three basic mechanisms regulate the activities of the digestive tract?
- Multiple ChoiceWhich of the following is the most common cause of peritonitis?
- Open QuestionLara was on a diet but she could not eat less and kept claiming her stomach had a mind of its own. She was joking, but indeed, there is a 'gut brain' called the enteric nervous system. Is it part of the parasympathetic and sympathetic nervous system? Explain.
- Open QuestionThe peritoneal cavitya. is the same thing as the abdominopelvic cavity,b. is filled with air,c. like the pleural and pericardial cavities is a potential space containing serous fluid,d. contains the pancreas and all of the duodenum.
- Open Question
Individuals experiencing prolonged vomiting lose a great deal of hydrochloric acid with the vomitus. Predict the effect this loss of acid will have on the pH of the blood. How will the respiratory system respond to the change in pH? (Connects to Chapters 2 and 21)