ATI RN
Digestive System Exam Questions Questions
Question 1 of 5
All of the following are components of saliva EXCEPT?
Correct Answer: B
Rationale: Pepsin is not a component of saliva; it is found in the stomach where it helps digest proteins. Saliva contains mucin, amylase, and IgA antibodies.
Question 2 of 5
What is frenulum?
Correct Answer: A
Rationale: The frenulum is a fold of tissue that anchors the tongue to the floor of the mouth.
Question 3 of 5
Islets of Langerhans and are found in
Correct Answer: B
Rationale: Islets of Langerhans are endocrine (ductless) glands in the pancreas that secrete hormones like insulin.
Question 4 of 5
In gut, serosa is outer most layer and made up of
Correct Answer: C
Rationale: The serosa, the outermost layer of the gut, is made of mesothelium and connective tissue.
Question 5 of 5
Digestion of starch starts from the mouth, whereas ...A... is the site of digestion mainly for ...B... Choose the correct combination of options to complete the given statement.
Correct Answer: C
Rationale: The small intestine is the primary site for protein digestion, while starch digestion begins in the mouth.