ATI RN
Anatomy and Physiology of the Female Breast Questions
Question 1 of 5
What is the primary function of the endometrial layer of the uterus?
Correct Answer: B
Rationale: The correct answer is B: Prepare to receive and nourish a fertilized ovum (blastocyst). The primary function of the endometrial layer of the uterus is to provide a suitable environment for implantation and nourishment of a fertilized egg. During the menstrual cycle, the endometrial layer thickens in preparation for potential pregnancy. If fertilization occurs, the blastocyst implants into the endometrium for further development. Choices A, C, and D are incorrect as the endometrial layer does not primarily function to increase in density during each cycle, produce ovulation-regulating hormones, or maintain pregnancy, respectively.
Question 2 of 5
The myometrium of the uterus responds to which hormone?
Correct Answer: A
Rationale: The correct answer is A: Prostaglandins and oxytocin. Prostaglandins and oxytocin are the primary hormones that stimulate contractions in the myometrium of the uterus during labor. Progesterone and estrogen (choice B) are involved in the menstrual cycle and maintaining pregnancy, not in uterine contractions. Oxytocin, relaxin, and prostaglandin E (choice C) have roles in labor but are not the primary hormones that directly act on the myometrium. Progesterone and testosterone (choice D) do not directly influence uterine contractions.
Question 3 of 5
A young woman experienced signs of secondary sexual development (puberty) beginning at age 12. She is now approaching her 17th birthday but has not yet begun menstruating. What is the clinic nurse’s best response?
Correct Answer: C
Rationale: The correct answer is C. Given the young woman's delayed menarche despite signs of secondary sexual development, further assessment is warranted to rule out any underlying medical conditions affecting her menstrual cycle. This approach ensures appropriate evaluation and potential intervention if necessary. A: Incorrect. While reassuring, it overlooks the need for a thorough assessment in this scenario. B: Incorrect. Prematurely alarming the individual about future fertility issues without proper evaluation is unwarranted. D: Incorrect. While some young women may be "late bloomers," it is essential to verify this through a professional assessment to rule out any underlying issues.
Question 4 of 5
Testosterone is responsible for the development of which of the following? Select all that apply.
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.
Question 5 of 5
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?
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.