which hormone regulates the production of milk after childbirth
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HESI RN

Reproductive System Exam Questions

1. Which hormone regulates the production of milk after childbirth?

Correct answer: A

Rationale: The correct answer is Prolactin. Prolactin is the hormone responsible for regulating the production of milk after childbirth. It stimulates the mammary glands in the breasts to produce milk. Oxytocin, on the other hand, is responsible for the ejection of milk from the breasts. Estrogen and progesterone play roles in the menstrual cycle and pregnancy but are not directly involved in milk production. Therefore, choices B, C, and D are incorrect.

2. Which of the following is a complication of abortions?

Correct answer: D

Rationale: Septicaemia is a severe complication that can result from abortions due to infections introduced during the procedure. Malnutrition, peritoneum, and fibroids are not typically direct complications of abortions.

3. When does threatened abortion occur?

Correct answer: A

Rationale: Threatened abortion occurs when the patient experiences slight vaginal bleeding through an undilated cervix. This is characterized by bleeding without cervical dilation, distinguishing it from inevitable abortion (heavy bleeding and cervical dilation), incomplete abortion (severe cramping and heavy bleeding), and missed abortion (painless bleeding and an open cervix).

4. Which contraceptive option suppresses sperm motility and inhibits the implantation of the blastocyst?

Correct answer: A

Rationale: The correct answer is A, Copper-T. Copper-T is an intrauterine device that releases copper ions, which suppress sperm motility and inhibit the implantation of the blastocyst. This method mainly works by preventing fertilization and, if fertilization occurs, by making the endometrium less receptive to implantation. Choices B, C, and D are incorrect. The diaphragm is a barrier method that prevents sperm from reaching the cervix; contraceptive pills mainly work by suppressing ovulation and altering cervical mucus to prevent sperm from reaching the egg; condoms are barrier methods that prevent sperm from entering the vagina.

5. Through which arteries does the blood supply to the external genitalia primarily occur?

Correct answer: C

Rationale: The correct answer is C: Pudendal arteries. The pudendal arteries are responsible for supplying blood to the external genitalia. These arteries specifically provide blood flow to the perineum, including the external genitalia. Choice A, Femoral arteries, are not primarily responsible for supplying blood to the external genitalia. Choice B, Inguinal arteries, do not supply blood directly to the external genitalia. Choice D, Internal iliac arteries, are not the main suppliers of blood to the external genitalia.

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