ATI RN
Biology Human Reproductive System Questions
Question 1 of 5
Testosterone is converted to _____ in the prostate.
Correct Answer: D
Rationale: The correct answer is D: dihydrotestosterone. Testosterone is converted to dihydrotestosterone (DHT) in the prostate by the enzyme 5-alpha reductase. DHT is a more potent androgen that plays a crucial role in prostate growth and development. Choice A (cholesterol) is incorrect as it is not a product of testosterone conversion in the prostate. Choice B (estrogen) is incorrect as testosterone is not directly converted to estrogen in the prostate. Choice C (progesterone) is incorrect as progesterone is not the main product of testosterone conversion in the prostate.
Question 2 of 5
Which factor causes the act of ovulation?
Correct Answer: B
Rationale: The correct answer is B: LH levels. Ovulation is triggered by a surge in luteinizing hormone (LH) levels, which causes the release of the mature egg from the ovary. LH surge is a key event in the menstrual cycle that leads to ovulation. Explanation: 1. LH surge stimulates the release of the egg from the dominant follicle in the ovary. 2. This surge typically occurs around the middle of the menstrual cycle. 3. Ovulation occurs within 24-36 hours after the LH surge. 4. FSH (Choice C) is involved in follicle development but does not directly cause ovulation. 5. Estrogen (Choice D) plays a role in the menstrual cycle but does not directly trigger ovulation. 6. Blood pressure (Choice A) is not involved in the process of ovulation. Summary: LH levels are the primary factor that causes ovulation by triggering the release of the egg from the ovary
Question 3 of 5
What is the source and function of HCG?
Correct Answer: D
Rationale: The correct answer is D: placenta; mimics LH. Rationale: 1. HCG (Human Chorionic Gonadotropin) is produced by the placenta during pregnancy. 2. HCG mimics the action of LH (Luteinizing Hormone) to support the corpus luteum in producing progesterone. 3. This helps maintain the uterine lining and supports the pregnancy. Summary: A: Incorrect - Uterus does not produce HCG, and it does not cause labor. B: Incorrect - Ovary does not produce HCG, and it does not stimulate FSH. C: Incorrect - Placenta produces HCG, but it does not inhibit LH; instead, it mimics LH's actions.
Question 4 of 5
__________ is an example of an oviparous animal.
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
Which structure is composed of three cylindrical masses of erectile tissue each surrounded by a fibrous tissue?
Correct Answer: D
Rationale: The correct answer is D: Penis. The penis is composed of three cylindrical masses of erectile tissue (two corpora cavernosa and one corpus spongiosum) surrounded by fibrous tissue. The corpora cavernosa fill with blood during an erection, leading to rigidity. The other choices (A: Testes, B: Prostate, C: Bladder) do not fit the description of being composed of three cylindrical masses of erectile tissue surrounded by fibrous tissue. The testes are responsible for sperm production, the prostate is a gland that produces semen, and the bladder is a hollow muscular organ for storing urine.