HESI RN
Reproductive System Exam Questions
1. Which of these methods can be used for the transfer of zygote or early embryo into the fallopian tube?
- A. GIFT
- B. IUT
- C. ZIFT
- D. ICSI
Correct answer: C
Rationale: The correct answer is C, ZIFT (Zygote Intrafallopian Transfer). ZIFT involves transferring a zygote or early embryo into the fallopian tube. GIFT (Gamete Intrafallopian Transfer - A) involves transferring unfertilized eggs and sperm into the fallopian tube for fertilization to occur inside the woman's body, not a zygote or early embryo. IUT (Intrauterine Transfer - B) is not specifically for transferring the zygote or early embryo into the fallopian tube, but rather into the uterus. ICSI (Intracytoplasmic Sperm Injection - D) is a technique where a single sperm is injected directly into an egg, not related to transferring embryos into the fallopian tube.
2. After fertilization, cell division occurs through a process of:
- A. Binary fission
- B. Meiosis
- C. Budding
- D. Mitosis
Correct answer: D
Rationale: After fertilization, the zygote undergoes cell division through the process of mitosis. Mitosis is the type of cell division that results in two daughter cells with the same number of chromosomes as the parent cell. Choice A, binary fission, is a form of asexual reproduction in prokaryotes, not the process that occurs after fertilization in multicellular organisms. Choice B, meiosis, is a type of cell division that leads to the formation of gametes with half the number of chromosomes, not the process that occurs after fertilization. Choice C, budding, is a form of asexual reproduction seen in some organisms like yeast, but it is not the process of cell division after fertilization.
3. Approximately how many primordial follicles are present in the cortex of the ovary at birth?
- A. 250,000
- B. 200,000
- C. 150,000
- D. 100,000
Correct answer: A
Rationale: The correct answer is A: 250,000. At birth, there are approximately 250,000 primordial follicles in the cortex of each ovary. These primordial follicles represent the reserve of oocytes that a female will have throughout her reproductive life. Choice B, 200,000, is incorrect as the number is higher. Choices C and D, 150,000 and 100,000 respectively, are also incorrect as they underestimate the actual number of primordial follicles present at birth.
4. The menstrual disorder in which there is an absence or suppression of the normal menstrual period is called:
- A. Dysmenorrhoea
- B. Polymenorrhoea
- C. Menorrhagia
- D. Amenorrhoea
Correct answer: D
Rationale: Amenorrhoea is the correct term for the absence or suppression of the menstrual period. Dysmenorrhoea refers to painful menstruation, Polymenorrhoea is characterized by frequent, short menstrual cycles, and Menorrhagia is excessive menstrual bleeding. Therefore, 'Amenorrhoea' is the most appropriate term for the described menstrual disorder.
5. What are the external organs of the female collectively known as?
- A. Vulva
- B. Frenulum
- C. Mons veneris
- D. Vestibule
Correct answer: A
Rationale: The correct answer is A: Vulva. The external organs of the female reproductive system, including the labia majora, labia minora, clitoris, vaginal opening, and Bartholin's glands, are collectively known as the vulva. Choice B, Frenulum, is incorrect as it refers to a small band of tissue. Choice C, Mons veneris, specifically refers to the rounded mass of fatty tissue located over the pubic bone, not all external female reproductive organs. Choice D, Vestibule, is incorrect as it is the space enclosed by the labia minora that includes the vaginal and urethral openings, not all external female reproductive organs.
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