Which of the following is a normal age-related change for the male reproductive system?

Correct Answer: B

Rationale: The correct answer is B because as males age, the number and capability of sperm naturally decrease due to factors such as decreased testosterone levels and increased DNA damage. This is a normal age-related change in the male reproductive system. A: The prostate gland actually tends to enlarge with age, not shrink. C: Sexual response typically slows down with age, not speeds up. D: Menopause is a term specific to females and is not a normal age-related change for the male reproductive system.

Correct Answer: A

Rationale: The correct answer is A: Skeletal muscle. Skeletal muscles are voluntary muscles because they are under conscious control. We can move them at will to perform various activities like walking or lifting objects. Smooth muscle (B), pulmonary muscle (C), and cardiac muscle (D) are involuntary muscles controlled by the autonomic nervous system. Smooth muscle is found in organs like the digestive tract, pulmonary muscle is not a recognized muscle type, and cardiac muscle is found in the heart and contracts involuntarily to pump blood. Therefore, the correct answer is skeletal muscle as it is the only type of muscle that is under voluntary control.

Correct Answer: C

Rationale: The correct answer is C: Preventing falls. This is because individuals with multiple sclerosis often have balance and coordination issues, making them more prone to falls. By implementing fall prevention strategies such as removing tripping hazards and providing assistive devices, caregivers can help reduce the risk of falls. Rushing residents through tasks (A) can lead to stress and errors. Administering medications (B) is important but not specific to caring for MS residents. Encouraging the resident to speak faster (D) is not relevant to MS care.

Correct Answer: D

Rationale: The correct answer is D because the endocrine system produces hormones that help regulate blood sugar levels. Hormones like insulin and glucagon are released by endocrine glands to control glucose levels in the blood. This process is crucial for maintaining homeostasis in the body. A, B, and C are incorrect: A: Regulating body temperature is primarily the function of the integumentary and nervous systems. B: Giving the body shape and structure is mainly the role of the skeletal and muscular systems. C: Sensing and interpreting messages from the environment are tasks of the nervous system.

Correct Answer: C

Rationale: The correct answer is C because a cane is typically used to provide stability when a person is unsteady or has weakness. It helps distribute weight and support balance while walking. Choice A is incorrect as it focuses solely on balance without considering weakness. Choice B is incorrect because it specifies only one leg, whereas a cane can be used for general weakness. Choice D is incorrect as it focuses on bed mobility rather than walking stability.