Nokea
The liver contains macrophages that have a special name. What is this name?
- A. Lymphocytes
- B. Coffee cells
- C. Kupffer cells
- D. Liver macrophage
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.
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Match each term with the correct description: made up of organs that rid your body of wastes and control blood volume
- A. urethra
- B. urinary system
- C. bladder
- D. kidneys
Correct Answer: B
Rationale: The urinary system includes organs that remove wastes and regulate blood volume.
A gastrointestinal tumor involving villi and plicae circulares might interfere with:
- A. deglutition
- B. absorption
- C. peristalsis
- D. defecation
Correct Answer: B
Rationale: Villi and plicae circulares increase the surface area for absorption in the small intestine. A tumor affecting these structures would impair absorption.
What happens during defecation?
- A. Food is chewed
- B. Nutrients are absorbed
- C. Chyme is formed
- D. Undigested waste is expelled
Correct Answer: D
Rationale: Defecation is the final stage where undigested waste (feces) is eliminated via the anus.
All of the following are true of the stomach EXCEPT?
- A. Pepsinogen is activated to pepsin by HCl
- B. Parietal cells secrete intrinsic factor
- C. Chief cells secrete pepsinogen
- D. The pyloric region is a major site for nutrient absorption
Correct Answer: D
Rationale: The pyloric region primarily functions as a regulator of food movement into the small intestine, not as a major site for nutrient absorption.
Parotid gland, all true except:
- A. Secrete 25% of salivary secretion
- B. Formed mainly of mixed acini
- C. Has prominent striated ducts
- D. Its inflammation results in mumps
Correct Answer: B
Rationale: The parotid gland is purely serous, not mixed, secreting watery saliva rich in enzymes.