Reproductive System Quizlet Anatomy

Reproductive System Quizlet Anatomy Related

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A surge of FSH and LH is induced in the adenohypophysis 24 hours before ovulation and the first meiotic division of the primary oocyte resumes. At what stage does the oocyte become arrested until it becomes fertilized?

  • A. First meiotic division, prophase
  • B. First meiotic division, metaphase
  • C. Second meiotic division, prophase
  • D. Second meiotic division, metaphase
Correct Answer: D

Rationale: The correct answer is D: Second meiotic division, metaphase. After the surge of FSH and LH induces the first meiotic division to resume, the oocyte becomes arrested at the metaphase stage of the second meiotic division until fertilization. This arrest allows for the completion of meiosis upon fertilization. Choices A and B are incorrect because the oocyte does not become arrested at the prophase or metaphase of the first meiotic division. Choice C is incorrect because the oocyte does not become arrested at the prophase of the second meiotic division, but rather at the metaphase stage.

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Which of the following is the primary sign of breast cancer?

  • A. A bloody discharge from the nipple
  • B. A dimpling of the skin over the lesion
  • C. A retraction of the nipple
  • D. A painless mass in the breast
Correct Answer: D

Rationale: A painless mass is often the first noticeable sign of breast cancer.

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.

While performing a breast examination on a 22-year-old client, you obtain all of these data. Which information is of most concern?

  • A. Both breasts have many nodules in the upper, outer quadrants.
  • B. Client complains of bilateral breast tenderness with palpation.
  • C. The breast on the right side is slightly larger than the left breast.
  • D. An irregularly shaped, nontender lump is palpable in the left breast.
Correct Answer: D

Rationale: An irregularly shaped, nontender lump may indicate malignancy, requiring further investigation.

Which one of the following is NOT one

  • A. spermatid of the secondary sex characteristics
  • B. primary spermatocyte typical of males?
  • C. secondary spermatocyte
  • D. deepening voice
Correct Answer: A

Rationale: The correct answer is A because a spermatid is a mature male germ cell that arises from the process of spermatogenesis, not a secondary sex characteristic.
- B is incorrect as a primary spermatocyte is indeed typical of males in the process of spermatogenesis.
- C is incorrect as a secondary spermatocyte is an intermediate stage in spermatogenesis.
- D is incorrect as deepening voice is a secondary sex characteristic associated with male puberty.

Where does spermatogenesis occur?

  • A. Interstitial cells.
  • B. Seminal vesicles.
  • C. Seminiferous tubules.
  • D. Vas deferens.
Correct Answer: C

Rationale: The correct answer is C: Seminiferous tubules. Spermatogenesis is the process of sperm production, which occurs in the seminiferous tubules of the testes. These tubules contain specialized cells called Sertoli cells and spermatogonia that undergo multiple stages of cell division and maturation to form spermatozoa. Interstitial cells (A) produce testosterone, seminal vesicles (B) secrete seminal fluid, and vas deferens (D) is the duct that carries sperm from the testes to the urethra but is not the site of spermatogenesis.

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