HESI RN
Reproductive System Exam Quizlet
1. What is one of the roles of the oxytocin hormone?
- A. Stimulates milk ejection.
- B. Stimulates the production of milk.
- C. Stimulates the development of lactoferrin.
- D. Stimulates the secretion of relaxin.
Correct answer: A
Rationale: The correct answer is A: 'Stimulates milk ejection.' Oxytocin is responsible for contracting the muscles around the milk ducts, pushing milk into the nipples for breastfeeding. This process is known as milk ejection or let-down. The other choices are incorrect because oxytocin's primary function is to facilitate milk ejection rather than directly stimulating the production of milk, the development of lactoferrin, or the secretion of relaxin.
2. Mrs. Banda is a patient at the ward with complaints of light menstrual periods, which occur at intervals greater than 35 days. Your diagnosis will be:
- A. Oligomenorrhea
- B. Menorrhagia
- C. Metrorrhagia
- D. Polymenorrhea
Correct answer: A
Rationale: The correct diagnosis for Mrs. Banda's condition is Oligomenorrhea. Oligomenorrhea is characterized by light menstrual periods occurring at intervals longer than 35 days. Choice B, Menorrhagia, refers to abnormally heavy menstrual bleeding. Choice C, Metrorrhagia, is bleeding at irregular intervals, and Choice D, Polymenorrhea, involves menstrual cycles occurring at intervals shorter than 21 days.
3. A solid ball of 12-16 cells having undergone mitotic division after fertilization is:
- A. Zygote
- B. Blastomere
- C. Morula
- D. Blastocyst
Correct answer: C
Rationale: A morula is a stage in embryonic development where a solid ball of 12-16 cells is formed after several rounds of mitotic division following fertilization. The zygote is the initial cell formed by the fusion of sperm and egg. Blastomere refers to individual cells in a developing embryo. A blastocyst is a later stage where a fluid-filled cavity forms within the embryo. Therefore, the correct answer is 'Morula.'
4. Which of the following are examples of external genitalia?
- A. Mons veneris
- B. Labia majora
- C. Vagina
- D. Cervix
Correct answer: A
Rationale: The correct answer is A: Mons veneris. The mons veneris and labia majora are considered external genitalia as they are visible externally. The vagina and cervix, on the other hand, are internal structures. The vagina is the canal leading from the external genitals to the cervix, which is the lower, narrow portion of the uterus.
5. Which structure maintains the uterus in an anteverted and anteflexed position?
- A. Round ligaments
- B. Broad ligaments
- C. Cardinal ligaments
- D. Pubocervical ligaments
Correct answer: A
Rationale: The correct answer is the Round ligaments. The round ligaments are responsible for maintaining the uterus in an anteverted and anteflexed position. These ligaments attach from the sides of the uterus and extend through the inguinal canal to the labia majora. The other choices, Broad ligaments, Cardinal ligaments, and Pubocervical ligaments, have different functions and attachments within the pelvis. Broad ligaments are a double layer of peritoneum that encloses the uterus and supports the uterine tubes. Cardinal ligaments provide support to the cervix and upper vagina. Pubocervical ligaments support the cervix and bladder.
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