Nokea
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.
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A male nurse is teaching a client about the scrotum and the ability of sperm to be effective in fertility. The nurse teaches the client that the sperm is contained in the testes and that its temperature is regulated by which of the following?
- A. Penis and surrounding structures
- B. Bladder tone
- C. Structure of the scrotum
- D. Smooth and skeletal muscles in the scrotum
Correct Answer: D
Rationale: The scrotum contains smooth and skeletal muscles that help regulate the temperature necessary for spermatogenesis.
Which statements about the ovarian follicles are true:
- A. they are located in the cortical area of the ovary;
- B. they are present in the ovary since birth;
- C. they are formed in the ovary at puberty;
- D. they are found in successive stages of evolution;
Correct Answer: B
Rationale: The correct answer is B because ovarian follicles are actually present in the ovary since birth. They are formed during fetal development and remain in a dormant state until puberty. Choice A is incorrect because follicles are located in the medullary area of the ovary, not the cortical area. Choice C is incorrect because follicles are formed before puberty. Choice D is incorrect because follicles do not go through stages of evolution but rather stages of development.
Which of the following reasons should a nurse provide a client when asked about the purpose of a Papanicolaou test?
- A. It is used to detect early breast cancer.
- B. It is used to detect early cancer of the Cervix.
- C. It is used to detect the fertility status of the woman.
- D. It is used to detect early stages of an STD.
Correct Answer: B
Rationale: The Pap test is specifically designed to detect early cervical cancer.
Sterilization in the male is accomplished by excising a small portion of the:
- A. Vas deferens
- B. Ejaculatory duct
- C. Epididymis
- D. Seminal vesicles
Correct Answer: A
Rationale: The correct answer is A: Vas deferens. Sterilization in males is typically done through a procedure called a vasectomy, where a small portion of the vas deferens is excised to prevent the transportation of sperm from the testicles to the urethra. The vas deferens is the duct that carries sperm from the epididymis to the ejaculatory duct. Excising a portion of the ejaculatory duct, epididymis, or seminal vesicles would not prevent the transportation of sperm, making choices B, C, and D incorrect.
Structurally, the testicle is made up of:
- A. intratesticular spermatic ducts;
- B. lobules, delineated by connective septa;
- C. the cortical zone, in the center;
- D. the medullar zone, at the periphery;
Correct Answer: B
Rationale: The correct answer is B: lobules, delineated by connective septa. The testicle is structurally organized into lobules separated by connective tissue septa. Each lobule contains seminiferous tubules where sperm production occurs. This organization allows for efficient production and transport of sperm.
Incorrect choices:
A: Intratesticular spermatic ducts - Incorrect, as the testicle contains seminiferous tubules, not spermatic ducts.
C: The cortical zone, in the center - Incorrect, as the testicle structure does not have a defined cortical zone.
D: The medullar zone, at the periphery - Incorrect, as the medullary zone is not at the periphery but rather towards the center of the testicle.