Nokea
Islets of Langerhans and are found in
- A. Modified lymph glands, pancreas
- B. Ductless glands, pancreas
- C. Specialized area, pituitary
- D. Small tubules, kidney
Correct Answer: B
Rationale: Islets of Langerhans are endocrine (ductless) glands in the pancreas that secrete hormones like insulin.
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A client is being prepared for a colonoscopy, a test to visualize the large intestine. The nurse is aware that this examination will assist in identification of pathology of the:
- A. Large intestine
- B. Stomach
- C. Small intestine
- D. Esophagus
Correct Answer: A
Rationale: A colonoscopy visualizes the large intestine to detect abnormalities.
By which process, most of glucose and amino acids are absorbed in the small intestine?
- A. Active transport
- B. Passive transport
- C. Osmosis
- D. Selective absorption
Correct Answer: A
Rationale: Glucose and amino acids are primarily absorbed via active transport in the small intestine.
The nutrient that is needed in small amounts that helps to regulate body processes and perform chemical reactions is
- A. vitamins
- B. minerals
- C. fibre
- D. carbohydrate
Correct Answer: A
Rationale: Vitamins are required in small amounts to regulate body processes and support various chemical reactions in the body.
Which part(s) of the esophagus necessitate(s) input from the central nervous system to orchestrate peristalsis?
- A. The upper third
- B. The middle third
- C. The lower third
- D. The upper and middle portions
Correct Answer: A
Rationale: The upper third of the esophagus, with striated muscle, requires CNS input (via the vagus nerve) for primary peristalsis.
What waste does the integumentary system remove from the body?
- A. liquid waste
- B. carbon dioxide
- C. salt and water
- D. urea
Correct Answer: C
Rationale: The integumentary system, via sweat glands, removes salt and water through perspiration.