ATI RN
Reproductive System Quizlet Questions
Question 1 of 5
Circular movement around an axis is known as ___________________.
Correct Answer: B
Rationale: The correct answer is B: Rotation. Circular movement around an axis is described as rotation. This movement involves turning or spinning around a fixed point. Dorsiflexion (A) is the movement of bringing the top of the foot towards the shin. Extension (C) refers to straightening or increasing the angle of a joint. Pronation (D) is the inward rotation of the forearm or foot. Rotation (B) specifically signifies movement around an axis, making it the most appropriate choice for circular movement.
Question 2 of 5
The transmission of sound vibrations through the inner ear occurs chiefly through:
Correct Answer: D
Rationale: The correct answer is D: Liquid. Sound vibrations travel through the inner ear mainly through the liquid-filled cochlea. When sound waves reach the ear, they cause the fluid inside the cochlea to move, stimulating hair cells that convert the vibrations into electrical signals sent to the brain. Choice A (Bone) is incorrect as bone conduction bypasses the middle ear, while sound must pass through it to reach the cochlea. Choice B (Nerve fibers) is incorrect because nerves transmit the electrical signals generated by the hair cells, not sound vibrations themselves. Choice C (Air) is incorrect as the inner ear is filled with liquid, not air, and sound waves need a medium like air to travel through the ear canal but not inside the inner ear.
Question 3 of 5
Which is true of prostate cancer?
Correct Answer: D
Rationale: The correct answer is D. Ethnicity is a risk factor for prostate cancer. African American men have a higher risk compared to other ethnicities. This is supported by research and epidemiological studies. Choice A is incorrect as prostate cancer, when detected early, has a high survival rate. Choice B is also incorrect as prostate cancer is one of the most common cancers in men. Choice C is incorrect as having a family history of prostate cancer is a known risk factor.
Question 4 of 5
A young woman is given daily injections of a substance beginning on the 16th day of her normal menstrual cycle and continuing for 3 weeks. As long as the injections continue, she does not menstruate. The injected substance could be which of the following?
Correct Answer: C
Rationale: The correct answer is C: An inhibitor of progesterone’s actions. Progesterone is responsible for maintaining the uterine lining, and inhibiting its actions would prevent menstruation. Testosterone (A) and FSH (B) do not directly affect menstruation. Prostaglandin E2 (D) is involved in the menstrual process, but inhibiting it would not necessarily stop menstruation.
Question 5 of 5
A female athlete who took testosterone-like steroids for several months stopped having normal menstrual cycles. What is the best explanation for this observation?
Correct Answer: D
Rationale: The correct answer is D because testosterone inhibits the hypothalamic secretion of gonadotropin-releasing hormone (GnRH) and the pituitary secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH). This disruption in the normal hormonal feedback loop leads to the suppression of ovulation and the menstrual cycle. Option A is incorrect because inhibin is not directly affected by testosterone. Option B is incorrect as testosterone does not bind to endometrial receptors directly. Option C is incorrect because testosterone does not stimulate the secretion of FSH and LH from the anterior pituitary.