Nokea
How is food processed to distribute nutrients to the body's cells?
- A. Ingested, digested, absorbed, assimilated
- B. Absorbed directly from the mouth
- C. Excreted immediately
- D. Stored in the stomach indefinitely
Correct Answer: A
Rationale: Food is ingested (taken in), digested (broken down), absorbed (taken into blood), and assimilated (distributed to cells).
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Using the figure shown, indicate where on the abdomen the nurse should palpate to examine a client's liver for size and tenderness.
- A. Right upper quadrant
- B. Left upper quadrant
- C. Right lower quadrant
- D. Left lower quadrant
Correct Answer: A
Rationale: The liver is located primarily in the right upper quadrant of the abdomen.
Sieve plate is the found in the endothelium of:
- A. Hepatic sinusoids.
- B. Fenestrated capillaries of intestinal villi.
- C. Capillaries of islets of Langerhans.
- D. Lacteal lymphatic capillaries.
Correct Answer: A
Rationale: Sieve plates are clusters of fenestrae in the endothelium of hepatic sinusoids, allowing plasma exchange with the space of Disse.
Infants' gastric juice contains
- A. Nuclease, pepsinogen, lipase
- B. Maltase, pepsinogen, rennin
- C. Amylase, rennin, pepsinogen
- D. Pepsinogen, lipase, rennin
Correct Answer: D
Rationale: Infants' gastric juice contains pepsinogen, lipase, and rennin to aid in milk digestion.
Saliva contains two enzymes. What are they?
- A. Amylase and pepsin
- B. Amylase and lysozyme
- C. Amylase and lipase
- D. Amylase and renin
Correct Answer: B
Rationale: Saliva contains salivary amylase (ptyalin) for starch digestion and lysozyme for antibacterial action. Pepsin is in the stomach, lipase is mainly pancreatic, and renin is unrelated to saliva.
What is frenulum?
- A. It is the fold by which tongue is attached to the floor of oral cavity.
- B. It is uvula is present on pharyngeal wall
- C. It is a tonsil like structure on the lateral walls of palate
- D. It is V-shaped furrow which divides the surfaces of tongue
Correct Answer: A
Rationale: The frenulum is a fold of tissue that anchors the tongue to the floor of the mouth.