HESI RN
Reproductive System Exam Quizlet
1. What is the role of relaxin hormone?
- A. Relaxation of the symphysis pubis.
- B. Stimulation of milk production.
- C. Stimulating the development of the nipple and duct system in the breast.
- D. None of the above.
Correct answer: A
Rationale: The correct answer is A: Relaxation of the symphysis pubis. Relaxin hormone is responsible for loosening the ligaments in the pelvic area, particularly the symphysis pubis, to prepare for childbirth. Choice B, stimulation of milk production, is incorrect as this is primarily regulated by prolactin. Choice C, stimulating the development of the nipple and duct system in the breast, is incorrect as this is mainly influenced by estrogen and progesterone during pregnancy. Therefore, the correct role of relaxin hormone is the relaxation of the symphysis pubis.
2. Which space is present between the bladder and the uterus?
- A. Vesico-uterine pouch
- B. Pubovesical pouch
- C. Retro-uterine pouch
- D. Recto-uterine pouch
Correct answer: A
Rationale: The correct answer is the vesico-uterine pouch. This space is specifically located between the bladder and the uterus. The pubovesical pouch is incorrect as it refers to the space between the pubic bone and the bladder. The retro-uterine pouch, also known as the pouch of Douglas, is located between the uterus and rectum. The recto-uterine pouch is not a recognized anatomical term, making it an incorrect choice.
3. 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.
4. What is the role of the progesterone hormone?
- A. Stimulates the development of the nipple and duct system in the breast.
- B. Stimulates the storage of milk.
- C. Stimulates the secretion of relaxin.
- D. Stimulates the development of glandular tissue in the breast.
Correct answer: A
Rationale: The correct answer is A. Progesterone hormone's role includes stimulating the development of the nipple and duct system in the breast. This hormone is crucial for preparing the breast for potential pregnancy by promoting the growth of structures necessary for milk production. Choices B, C, and D are incorrect because progesterone primarily focuses on preparing the breast for lactation rather than directly stimulating milk storage, relaxin secretion, or glandular tissue development.
5. Complete abortion is characterized by:
- A. Os closed.
- B. Firm contracted uterus.
- C. Heavy bleeding.
- D. Heavy cramping.
Correct answer: A
Rationale: Complete abortion is characterized by a firm contracted uterus with a closed os. This closure of the os indicates that the products of conception have been completely expelled from the uterus. Choices B, C, and D are incorrect because a firm contracted uterus with a closed os is the hallmark sign of a complete abortion, not heavy bleeding, heavy cramping, or any other features.
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