Nokea
Match: Chyme
- A. a mixture of partially digested food, water, and gastric juice
- B. undigested fiber
- C. stored bile
- D. salivary secretion
Correct Answer: A
Rationale: Chyme is the semi-fluid mass of partly digested food expelled by the stomach into the duodenum.
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Mucus is secreted by the :-
- A. Stomach
- B. Duodenum
- C. Large intestine
- D. All of the above
Correct Answer: D
Rationale: Mucus is secreted by the stomach, duodenum, and large intestine for protection and lubrication.
Lysozyme breakdown
- A. Protein
- B. Sugar
- C. Bacterium
- D. Fat
Correct Answer: C
Rationale: Lysozyme targets and breaks down bacterial cell walls.
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.
Which of the following is a common passage in swallowing food and breathing-
- A. Pharynx
- B. Larynx
- C. Glottis
- D. Gullet
Correct Answer: A
Rationale: The pharynx serves as a common pathway for both food (to the esophagus) and air (to the larynx).
Which motor activity is primarily responsible for mixing and churning food in the small intestine to enhance digestion and absorption?
- A. Peristalsis
- B. Segmentation
- C. Migrating motor complex
- D. Gastric emptying
Correct Answer: B
Rationale: Segmentation mixes chyme with digestive enzymes and increases mucosal contact for absorption in the small intestine.