Nokea
Absorption of fat occurs through the process of
- A. Active transport
- B. Facilitated transport
- C. Osmosis
- D. Simple diffusion
Correct Answer: D
Rationale: Fats, emulsified into micelles, are absorbed via simple diffusion into lacteals.
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Match each term with the correct description: filtering units of kidney
- A. urethra
- B. nephrons
- C. bladder
- D. kidneys
Correct Answer: B
Rationale: Nephrons are the filtering units within the kidneys.
Lamina propria of hard palate is formed by:
- A. Loose areolar connective tissue.
- B. Adipose tissue
- C. Periostium of the bone above
- D. Mucoid connective tissue.
Correct Answer: C
Rationale: The lamina propria of the hard palate is directly continuous with the periosteum of the underlying bone, providing a firm attachment. Loose areolar tissue is more typical in softer mucosal areas.
Peristalsis in the muscle component of the human esophagus is produced by:
- A. A gradient in slow waves going from the top to the bottom
- B. Gravity moving swallowed food down the esophagus
- C. Simultaneous contraction of the entire longitudinal muscle layer
- D. Sequential firing of the extrinsic nerves from the nucleus ambiguous
Correct Answer: D
Rationale: Sequential firing of vagal nerves from the nucleus ambiguus coordinates esophageal peristalsis, moving food downward.
The large intestine lacks:
- A. goblet cells
- B. epiploic appendages
- C. plicae circulares
- D. haustra
Correct Answer: C
Rationale: The large intestine lacks plicae circulares, which are present in the small intestine to increase surface area.
Besides carbohydrates, proteins, fats, vitamins and minerals, what other nutrient does your body need for life?
- A. DNA
- B. chlorophyll
- C. water
- D. none of the above
Correct Answer: C
Rationale: Water is an essential nutrient required for all bodily functions.