Nokea
The clinic nurse is reviewing breastfeeding with a pregnant patient. Which hormone will the nurse explain is responsible for milk production after the birth of the placenta?
- A. Pitocin
- B. Prolactin
- C. Estrogen
- D. Progesterone
Correct Answer: B
Rationale: The correct answer is B: Prolactin. Prolactin is the hormone responsible for milk production after the birth of the placenta. It stimulates the alveoli in the breast to produce milk. Pitocin (A) is responsible for uterine contractions. Estrogen (C) and progesterone (D) are involved in pregnancy maintenance but do not directly stimulate milk production.
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An episiotomy is an incision made:
- A. Through the body of the uterus
- B. Through the cervix of the uterus
- C. In the perineum
- D. None of the above correctly describes an episiotomy.
Correct Answer: C
Rationale: An episiotomy is an incision made in the perineum.
A woman who is charting her basal temperature during her cycle notes a sudden increase of 0.6°F in her waking temperature on the 15th day of her menstrual cycle. Which hormone is the cause of this finding?
- A. FSH
- B. Progesterone
- C. Estrogen
- D. Prostaglandin
Correct Answer: B
Rationale: The correct answer is B: Progesterone. On the 15th day of the menstrual cycle, the woman would have ovulated, leading to the release of the egg and the formation of the corpus luteum. The corpus luteum produces progesterone, which causes an increase in basal body temperature. FSH (A) is responsible for stimulating the growth of ovarian follicles, not the temperature increase. Estrogen (C) levels peak before ovulation but do not cause the post-ovulation temperature rise. Prostaglandin (D) is involved in various physiological processes but not directly related to the basal temperature increase post-ovulation.
What is the name of the so-called ovulating hormone?
- A. Estrogen
- B. Progesterone
- C. Luteinizing hormone
- D. Follicle-stimulating hormone
Correct Answer: C
Rationale: Luteinizing hormone (LH) is known as the ovulating hormone because it triggers ovulation.
A high blood concentration of estrogens:
- A. Stimulates endometrial glands to secrete
- B. Stimulates epithelial cells of the endometrium to proliferate
- C. Stimulates FSH secretion by the anterior pituitary
- D. Causes development of the corpus luteum
Correct Answer: B
Rationale: High levels of estrogen stimulate the proliferation of epithelial cells in the endometrium.
Testosterone is responsible for the development of which of the following? Select all that apply.
- A. The male reproductive organs
- B. Male secondary sex characteristics
- C. Male muscle mass
- D. Male height
Correct Answer:
Rationale: Correct Answer: A, B, and C
Rationale:
A: Testosterone is crucial for the development of male reproductive organs such as the testes and prostate gland.
B: Testosterone plays a key role in the development of male secondary sex characteristics like facial hair and deepening of voice.
C: Testosterone contributes to the growth and maintenance of male muscle mass, influencing strength and physical performance.
Summary of Incorrect Choices:
D: Testosterone does not directly affect male height. Height is primarily determined by genetics and growth hormone levels.