ATI RN
Questions About Digestive System Questions
Question 1 of 5
The disease caused due to deficiency of nicotinic acid is
Correct Answer: D
Rationale: Pellagra is caused by a deficiency of niacin (nicotinic acid), leading to symptoms like dermatitis, diarrhea, and dementia.
Question 2 of 5
When administered intravenously, this hormone has the capability to initiate a phase of robust sequential contractions in the proximal duodenum, which gradually moves towards the cecum:
Correct Answer: C
Rationale: Motilin triggers the migrating motor complex, initiating strong contractions from the duodenum to the cecum during fasting.
Question 3 of 5
The liver contains macrophages that have a special name. What is this name?
Correct Answer: C
Rationale: Kupffer cells are specialized macrophages in the liver that remove debris and pathogens from the blood. Lymphocytes are white blood cells, and 'coffee cells' is not a term; 'liver macrophage' is less specific than Kupffer cells.
Question 4 of 5
The break down products of fat molecules can pass directly through the cell membrane. Why?
Correct Answer: A
Rationale: Fat breakdown products (fatty acids and glycerol) are lipid-soluble and can diffuse through the phospholipid bilayer of cell membranes.
Question 5 of 5
Homeostasis is best described as:
Correct Answer: C
Rationale: Homeostasis maintains internal stability using nerves and hormones despite external changes.