Which process matches the definition: The process of distributing absorbed nutrients to the cells of the body for growth and repair?
- A. Ingestion
- B. Absorption
- C. Assimilation
- D. Peristalsis
Correct Answer: C
Rationale: Assimilation involves distributing absorbed nutrients to body cells for use.
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The hepatic flexure of the large intestine occurs between the:
- A. transverse colon and descending colon
- B. cecum and ascending colon
- C. ascending colon and transverse colon
- D. descending colon and rectum
Correct Answer: C
Rationale: The hepatic flexure is located between the ascending colon and the transverse colon.
Lysozyme breakdown
- A. Protein
- B. Sugar
- C. Bacterium
- D. Fat
Correct Answer: C
Rationale: Lysozyme targets and breaks down bacterial cell walls.
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.
During physical examination the nurse notes an absence of bowel sounds. What does this finding indicate about the function of the gastrointestinal tract?
- A. Reduced peristalsis
- B. Normal digestion
- C. Increased motility
- D. Excessive gas
Correct Answer: A
Rationale: Absent bowel sounds suggest reduced or absent peristalsis, possibly indicating ileus or obstruction.
During physical examination the nurse notes an absence of bowel sounds. What does this finding indicate about the function of the gastrointestinal tract?
- A. Reduced peristalsis
- B. Normal digestion
- C. Increased motility
- D. Excessive gas
Correct Answer: A
Rationale: Absent bowel sounds suggest reduced or absent peristalsis, possibly indicating ileus or obstruction.