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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.
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All of the following are components of saliva EXCEPT?
- A. Mucin
- B. Pepsin
- C. Amylase
- D. IgA antibodies
Correct Answer: B
Rationale: Pepsin is not a component of saliva; it is found in the stomach where it helps digest proteins. Saliva contains mucin, amylase, and IgA antibodies.
When suggesting menu options to a group of senior citizens, the nurse is careful to include which of the following choices that would enhance normal physiology and prevent the problem of constipation?
- A. Whole grains
- B. Highly spiced or flavored foods
- C. Limiting fluids
- D. Salads and fresh fruits
Correct Answer: A
Rationale: Whole grains increase fiber intake, promoting bowel regularity and preventing constipation.
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.
A digestive enzyme, salivary amylase in the saliva begins digestion of-
- A. Starch
- B. Fiber
- C. Proteins
- D. Fats
Correct Answer: A
Rationale: Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before the food reaches the stomach.
The nephron is surrounded by capillaries. What is their name?
- A. Multitubular capillaries
- B. Unitubular capillaries
- C. Peritubular capillaries
- D. Polytubular capillaries
Correct Answer: C
Rationale: Peritubular capillaries surround the nephron, facilitating reabsorption and secretion.