Nokea
Emulsification of fats by bile takes place in-
- A. Duodenum
- B. Liver
- C. Stomach
- D. Intestine
Correct Answer: A
Rationale: Bile emulsifies fats in the duodenum, the first part of the small intestine.
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Secretin and cholecystokinin are secreted in
- A. Pyloric region
- B. Ileum
- C. Duodenum
- D. Oesophagus
Correct Answer: C
Rationale: Secretin and cholecystokinin are secreted in the duodenum to regulate pancreatic and gallbladder activity.
Where are the Islets of Langerhans found?
- A. Pancreas.
- B. Ileum.
- C. Colon.
- D. Liver.
Correct Answer: A
Rationale: The Islets of Langerhans are clusters of cells in the pancreas responsible for producing hormones like insulin and glucagon.
Insulin is secreted by pancreatic cells-
- A. α-cells
- B. β-cells
- C. Delta cells
- D. Gama cells
Correct Answer: B
Rationale: Insulin is secreted by β-cells in the Islets of Langerhans.
A 70-year-old male patient is experiencing symptoms of constipation, bloating, and abdominal discomfort. Physical examination reveals visible distension of the abdomen, and a contrast study shows dilation of the large intestine. Which of the following motility disorders is the most probable cause of the patient's symptoms?
- A. Excessive peristalsis in the large intestine
- B. Impaired segmentation in the small intestine
- C. Reduced peristalsis in the large intestine
- D. Excessive segmentation in the small intestine
Correct Answer: C
Rationale: Reduced peristalsis in the large intestine slows transit, leading to constipation, bloating, and dilation, as seen in the contrast study.
Match each term with the correct description: tubes that lead from each kidney to the bladder
- A. urethra
- B. urinary system
- C. ureters
- D. kidneys
Correct Answer: C
Rationale: The ureters are tubes transporting urine from the kidneys to the bladder.