Nokea
Which of the following is not a contribution of the reproductive system to the body systems?
- A. Stimulation of growth and maintenance of bones of the skeletal system
- B. Lowering blood cholesterol level in males under the age of 50
- C. Increasing the rate and depth of breathing during sexual arousal
- D. Stimulating the growth of skeletal muscles in males
Correct Answer: C
Rationale: The correct answer is C: Increasing the rate and depth of breathing during sexual arousal. The reproductive system does not directly contribute to the rate and depth of breathing. The main function of the reproductive system is to produce and deliver gametes for reproduction. It does not have a direct role in regulating respiratory functions. Choices A, B, and D are incorrect because the reproductive system does contribute to maintaining bone health, regulating cholesterol levels in males, and stimulating muscle growth in males. These functions are known contributions of the reproductive system to the body systems.
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Which of these is not a function of testosterone?
- A. loss of body hair
- B. thickening of the larynx
- C. anabolism of skeletal muscle
- D. thickening of bones
Correct Answer: A
Rationale: The correct answer is A, loss of body hair. Testosterone is responsible for thickening of the larynx, anabolism of skeletal muscle, and thickening of bones. It promotes growth and development of male secondary sexual characteristics, such as increased body hair. Therefore, loss of body hair is not a function of testosterone. Choice B, thickening of the larynx, is correct because testosterone contributes to the deepening of the voice by thickening the vocal cords. Choice C, anabolism of skeletal muscle, is correct as testosterone enhances protein synthesis in muscles, leading to muscle growth. Choice D, thickening of bones, is correct because testosterone promotes bone growth and mineralization.
A 72-year-old woman is being assessed by the nurse for an annual physical. Which finding is of concern to the nurse?
- A. Thinning of pubic hair
- B. Increased size of the uterus
- C. Decreased size of the clitoris
- D. Loss of tone of the pelvic ligaments
Correct Answer: B
Rationale: The correct answer is B: Increased size of the uterus. In a 72-year-old woman, an increased size of the uterus can indicate potential issues such as fibroids or endometrial hyperplasia, which may require further investigation. Thinning of pubic hair (A) is a common age-related change. Decreased size of the clitoris (C) and loss of tone of the pelvic ligaments (D) can also occur with aging but are not typically concerning findings during a routine physical exam in this age group.
Primary spermatogonium undergo:
- A. two mitotic divisions to become a secondary spermatocyte
- B. mitosis and then meiosis to become a secondary spermatocyte
- C. two meiotic divisions to become a secondary spermatocyte
- D. meiosis and differentiation to become a secondary spermatocyte
Correct Answer: B
Rationale: The correct answer is B. Primary spermatogonium undergo mitosis to replicate and maintain the diploid chromosome number, then meiosis to reduce the chromosome number, resulting in secondary spermatocytes. Choice A is incorrect as it skips meiosis. Choice C is incorrect as it suggests two meiotic divisions from primary spermatogonium, which is not accurate. Choice D is incorrect because it fails to mention the initial step of mitosis before meiosis in the process.
Breastbone is otherwise known as
- A. Xiphoid process
- B. Sternum
- C. Clavicle
- D. Coracoid process
Correct Answer: B
Rationale: The correct answer is B: Sternum. The sternum is commonly referred to as the breastbone because it is a flat bone located in the center of the chest. It connects to the rib cage and helps protect vital organs such as the heart and lungs. The xiphoid process (choice A) is the lower part of the sternum, the clavicle (choice C) is the collarbone, and the coracoid process (choice D) is a projection on the scapula. Therefore, the sternum is the most appropriate term for the breastbone.
Which of the following reasons would make a client who was treated successfully for a chlamydia infection at a greater risk for acquiring AIDS?
- A. The tissue irritation may be permanent, despite successful eradication of the bacteria.
- B. The immune system is already compromised.
- C. The bacterium Chlamydia trachomatis causes AIDS.
- D. The bacterium Chlamydia trachomatis continues to live inside the cells it has infected.
Correct Answer: B
Rationale: Having had an STI indicates existing vulnerabilities in the immune system, increasing susceptibility to HIV/AIDS.