The Reproductive System Quizlet

The Reproductive System Quizlet Related

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Which cells in the seminiferous tubules progress through the first meiotic division?

  • A. Sertoli cells
  • B. Spermatogonia
  • C. Spermatid
  • D. primary spermatocyte
Correct Answer: D

Rationale: The correct answer is D: primary spermatocyte. Primary spermatocytes are the cells in the seminiferous tubules that progress through the first meiotic division. During this division, primary spermatocytes undergo DNA replication and then divide into two secondary spermatocytes. These secondary spermatocytes will then undergo the second meiotic division to produce haploid spermatids.

Explanation for why other choices are incorrect:
A: Sertoli cells are supporting cells in the seminiferous tubules but do not undergo meiotic divisions.
B: Spermatogonia are the undifferentiated germ cells that give rise to primary spermatocytes but do not progress through meiotic divisions.
C: Spermatids are the haploid cells produced after the two meiotic divisions, so they do not progress through the first meiotic division.

In summary, primary spermatocytes are the cells that go through the first meiotic division in the seminiferous tubules

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What procedure does a nurse use to assess the inguinal ring of a male patient for a hernia?

  • A. Asks the patient to lie supine, lifts the scrotum, asks the patient to take a deep breath, and observes for a bulge
  • B. Asks the patient to lean over the examination table, inserts a gloved finger into the lower part of the scrotum into the inguinal canal, asks the patient to cough, and palpates for a bulge
  • C. Asks the patient to lie on the side not being assessed, inserts a gloved finger into the lower part of the scrotum into the inguinal canal, asks the patient to exhale completely, and palpates for a bulge
  • D. Asks the patient to stand, inserts a gloved finger into the lower part of the scrotum into the inguinal canal, asks the patient to cough, and palpates for a bulge
Correct Answer: D

Rationale: The correct answer is D because the nurse should assess the inguinal ring with the patient standing. This position allows gravity to aid in the detection of a hernia. By asking the patient to cough, intra-abdominal pressure increases, making any bulge more noticeable. Palpating for a bulge while the patient coughs helps to confirm the presence of a hernia.

Choice A is incorrect because assessing the inguinal ring with the patient lying supine does not utilize gravity to assist in detecting a hernia.

Choice B is incorrect because inserting a gloved finger into the lower part of the scrotum is not a proper technique for assessing the inguinal ring for a hernia in a male patient.

Choice C is incorrect because asking the patient to lie on the side not being assessed does not provide the optimal position for assessing the inguinal ring for a hernia.

The testicle is located:

  • A. inside a muscular pouch;
  • B. inside the scrotum;
  • C. at the inguinal canal;
  • D. inside the abdominal cavity;
Correct Answer: B

Rationale: The correct answer is B: inside the scrotum. The testicles are located outside the abdominal cavity in a structure called the scrotum. This location is essential for temperature regulation as sperm production requires a slightly lower temperature than the body's core. Choices A, C, and D are incorrect as the testicles are not inside a muscular pouch, at the inguinal canal, or inside the abdominal cavity.

Middle layer of uterus is called:

  • A. Endometrium
  • B. Ectometrium
  • C. Myometrium
  • D. Perimetrium.
Correct Answer: C

Rationale: The correct answer is C: Myometrium. The myometrium is the middle layer of the uterus composed of smooth muscle tissue responsible for uterine contractions during childbirth. The endometrium (A) is the innermost layer responsible for menstruation and implantation. Ectometrium (B) is not a correct term. Perimetrium (D) is the outermost layer of the uterus. Therefore, C is the correct choice as it accurately represents the middle layer of the uterus.

The ovarian follicles are located in the following structures, EXCEPT:

  • A. the Fallopian tubes;
  • B. the uterus;
  • C. the medullar area of the ovary;
  • D. the cortical area of the ovary;
Correct Answer: B

Rationale: The correct answer is B, the uterus. Ovarian follicles are structures within the ovaries where oocytes (eggs) develop. The Fallopian tubes, medullar area, and cortical area of the ovary all contain ovarian follicles. The uterus, on the other hand, is not where ovarian follicles are located; it is the organ where a fertilized egg implants and a pregnancy develops. Therefore, the correct answer is B because the uterus is not a structure where ovarian follicles are present.

Which of the following events does NOT lead to genetic variation?

  • A. Independent assortment of chromosomes during meiosis.
  • B. Random fertilization between ovum and sperm.
  • C. Crossing over between homologous chromosomes during meiosis I.
  • D. Crossing over between homologous chromosomes during meiosis II.
Correct Answer: D

Rationale: The correct answer is D. Crossing over between homologous chromosomes during meiosis II does not lead to genetic variation. This is because crossing over occurs during meiosis I, not meiosis II. Meiosis II is when the separated chromatids are pulled apart to form haploid cells. Independent assortment of chromosomes during meiosis (A) and random fertilization between ovum and sperm (B) both contribute to genetic variation by creating unique combinations of alleles. Crossing over between homologous chromosomes during meiosis I (C) also leads to genetic variation by exchanging genetic material between homologous chromosomes.

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