HESI RN
Reproductive System Exam Questions
1. What is the typical measurement of the anterior wall of the vaginal canal?
- A. 10 cm
- B. 11 cm
- C. 11.5 cm
- D. 7.5 cm
Correct answer: D
Rationale: The typical measurement of the anterior wall of the vaginal canal is 7.5 cm. This measurement is anatomically accurate, making choice D the correct answer. Choices A, B, and C provide measurements that are larger than the typical measurement of the anterior wall of the vaginal canal and are therefore incorrect.
2. Which of the following is NOT a phase of the menstrual cycle?
- A. Follicular phase
- B. Ovulatory phase
- C. Luteal phase
- D. Secretory phase
Correct answer: D
Rationale: The secretory phase is not considered a distinct phase of the menstrual cycle; it is actually part of the luteal phase. During the luteal phase, the endometrium thickens due to progesterone secretion, preparing for implantation. The follicular phase is characterized by follicle development, leading to ovulation. The ovulatory phase is when the mature egg is released from the ovary. Therefore, the secretory phase is the correct answer as it is not a standalone phase but a part of the luteal phase.
3. What is the most common site for an ectopic pregnancy?
- A. Isthmus
- B. Ampulla
- C. Interstitial
- D. Infundibulum
Correct answer: C
Rationale: The correct answer is C, Interstitial. An ectopic pregnancy most commonly occurs in the interstitial portion of the fallopian tube. This is because the interstitial part is narrow and not suitable for the growing embryo, leading to implantation outside the uterus. Choices A, B, and D are incorrect because although ectopic pregnancies can occur in various locations, the interstitial portion of the fallopian tube is the most frequent site for such pregnancies.
4. Which of the following is an example of a viviparous animal?
- A. Goat
- B. Duck
- C. Crocodile
- D. None of the above
Correct answer: A
Rationale: The correct answer is A, goat. Viviparous animals give birth to live young ones instead of laying eggs. Ducks and crocodiles are oviparous, meaning they lay eggs, making them incorrect choices. 'None of the above' is incorrect because goats are a valid example of viviparous animals.
5. Which phase of the menstrual cycle is variable?
- A. Ovulatory
- B. Regenerative
- C. Secretory
- D. Menstrual
Correct answer: B
Rationale: The regenerative phase of the menstrual cycle is the phase in which the endometrium rebuilds after menstruation. This phase can vary in duration from woman to woman and cycle to cycle. Choice A, the ovulatory phase, is not variable as it typically lasts around 24 hours. Choice C, the secretory phase, is also relatively consistent in its duration. Choice D, the menstrual phase, is the shedding of the endometrial lining and usually lasts around 3-7 days.
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