Nokea
The hormone that causes the alveoli of the mammary glands to secrete milk is:
- A. Estrogen
- B. Oxytocin
- C. Prolactin
- D. Estrogen
Correct Answer: C
Rationale: Prolactin stimulates the alveoli of the mammary glands to secrete milk.
You may also like to solve these questions
The external os opens into the vagina.
- A. TRUE
- B. FALSE
- C. NA
- D. NA
Correct Answer: A
Rationale: The external os is the opening of the cervix into the vagina.
The stimulation of initial milk production and release in the breast is accomplished by which hormones? Select all that apply.
- A. Oxytocin
- B. Progesterone
- C. Prolactin
- D. Luteinizing hormone
Correct Answer:
Rationale: Correct Answer: A (Oxytocin), C (Prolactin)
Rationale:
1. Oxytocin stimulates milk ejection (let-down reflex) by contracting the muscles around the alveoli, releasing milk.
2. Prolactin is responsible for the production of milk in the mammary glands.
Summary of Other Choices:
- Progesterone: Plays a role in preparing the breast for lactation but doesn't directly stimulate milk production.
- Luteinizing hormone: Primarily involved in ovulation and corpus luteum formation, not milk production.
The innermost layer of the wall of the uterus is the stratum:
- A. Myometrium
- B. Compactum
- C. Spongiosum
- D. Basale
Correct Answer: B
Rationale: The innermost layer of the uterine wall is the stratum compactum.
The least expensive type of infant formula is
- A. formula concentrate
- B. ready-to-feed formula
- C. powdered formula
Correct Answer: C
Rationale: Powdered formula is generally the least expensive option compared to concentrates and ready-to-feed formulas.
Which 16-year-old female patient is most likely to experience secondary amenorrhea?
- A. 5 ft 2 in, 130 lb
- B. 5 ft 9 in, 180 lb
- C. 5 ft 7 in, 96 lb
- D. 5 ft 4 in, 125 lb
Correct Answer: B
Rationale: The correct answer is B because a 16-year-old female with a height of 5 ft 9 in and weight of 180 lb is most likely to experience secondary amenorrhea due to obesity. Excess body fat can disrupt hormonal balance, leading to irregular or absent menstrual cycles. The other choices do not indicate obesity, which is a common cause of secondary amenorrhea in adolescents. Choice A is overweight but not obese, choice C is underweight, and choice D is within a healthy weight range. Therefore, choice B is the most likely candidate for secondary amenorrhea based on the given information.