Wolffian duct is also known as ____________.
- A. Mesonephric duct
- B. Ejaculatory duct
- C. Major sublingual duct
- D. Cystic duct
Correct Answer: A
Rationale: The correct answer is A: Mesonephric duct. The Wolffian duct is also known as the mesonephric duct because it develops in the embryo to form the male reproductive system. It gives rise to various structures such as the epididymis, vas deferens, and seminal vesicles. The other choices are incorrect because the ejaculatory duct is formed by the union of the vas deferens and seminal vesicle, the major sublingual duct is associated with saliva production, and the cystic duct is part of the biliary system and not related to the male reproductive system.
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During the first few years after menopause, follicle-stimulating hormone (FSH) levels are normally extremely high. A 56-year-old woman completed menopause 3 years ago. However, she is found to have low levels of FSH in her blood. Which of the following is the best explanation for this finding?
- A. She has been receiving hormone replacement therapy with estrogen and progesterone since she completed menopause
- B. Her adrenal glands continue to produce estrogen
- C. Her ovaries continue to secrete estrogen
- D. She took birth control pills for 20 years before menopause
Correct Answer: A
Rationale: The correct answer is A: She has been receiving hormone replacement therapy with estrogen and progesterone since she completed menopause. Hormone replacement therapy suppresses the release of FSH by providing exogenous hormones, thereby reducing the body's need to produce FSH. This explains the low levels of FSH in her blood despite being postmenopausal.
Explanation for why the other choices are incorrect:
B: Her adrenal glands continue to produce estrogen - Adrenal glands do produce small amounts of estrogen, but not in sufficient quantities to significantly impact FSH levels.
C: Her ovaries continue to secrete estrogen - Ovaries cease estrogen production after menopause, so this would not explain the low FSH levels.
D: She took birth control pills for 20 years before menopause - Birth control pills do not directly impact FSH levels in postmenopausal women.
Which of these is not a function of estrogen?
- A. decreases adipose
- B. breast development
- C. increased skin blood vessels
- D. enlarges clitoris
Correct Answer: A
Rationale: Estrogen does not decrease adipose tissue; it actually promotes fat deposition in certain body areas. Breast development, increased skin blood vessels, and enlargement of the clitoris are all functions of estrogen. Adipose tissue regulation is influenced by other hormones like insulin and cortisol.
Which hormone is made by the interstitial cells of the testis?
- A. Estrogen
- B. Testosterone
- C. Human chorionic gonadotropin (hCG)
- D. Luteinizing hormone (LH)
Correct Answer: B
Rationale: Certainly. The correct answer is B: Testosterone. Interstitial cells of the testis, also known as Leydig cells, synthesize and secrete testosterone. Testosterone is the primary male sex hormone responsible for the development of male reproductive tissues and characteristics. Estrogen (A) is primarily produced in the ovaries in females. Human chorionic gonadotropin (hCG) (C) is produced by the placenta during pregnancy. Luteinizing hormone (LH) (D) is secreted by the anterior pituitary gland and stimulates the interstitial cells to produce testosterone.
The general meaning of the term "corpus" is best described by which of the following?
- A. Abdomen
- B. Body
- C. Death
- D. Head
Correct Answer: B
Rationale: The correct answer is B: Body. Corpus commonly refers to a collection of written or spoken texts, which together form a body of work. "Body" is the best choice as it encompasses the idea of a collection or group of related items. A is incorrect as it refers specifically to the abdomen, not the general term. C, Death, and D, Head, are unrelated to the general meaning of "corpus" as they do not convey the idea of a body or collection.
The mother of an 18-year-old girl asks the nurse which screening her daughter should receive now based on evidence-based recommendations. Which suggestion by the nurse is best?
- A. Papanicolaou test
- B. Human papilloma virus (HPV) test
- C. Mammogram
- D. No screenings at this time
Correct Answer: D
Rationale: The correct answer is D because evidence-based recommendations do not support routine screening for cervical cancer (Papanicolaou test) or breast cancer (mammogram) in asymptomatic individuals under 21. HPV test is not recommended as a standalone screening for young women. No screenings at this time aligns with current guidelines to avoid unnecessary testing and potential harm in low-risk populations. It's important to focus on preventive measures such as vaccinations and healthy lifestyle choices rather than invasive screenings for this age group.