ATI RN
The Human Reproductive System Questions
Question 1 of 5
Which of the following is a false description of the negative feedback loop involved in the production of testosterone?
Correct Answer: A
Rationale: The correct answer is A because follicle stimulating hormone (FSH) is not directly involved in the negative feedback loop for testosterone production. The negative feedback loop for testosterone involves the hypothalamus releasing GnRH, which stimulates the pituitary gland to release luteinizing hormone (LH), which then stimulates the Leydig cells in the testes to produce testosterone. Rising levels of testosterone inhibit the release of GnRH and LH through negative feedback to maintain hormonal balance. Choices B, C, and D are incorrect because they accurately describe components of the negative feedback loop for testosterone production.
Question 2 of 5
The gonads produce sex cells, also spermatids into sperm is known as known as ________, ________.
Correct Answer: D
Rationale: The correct answer is D: spermiogenesis. Spermiogenesis is the process where spermatids mature into sperm cells in the testes. The gonads (testes in males) produce sex cells, but zygotes are formed through fertilization, not spermiogenesis. Mitosis is a type of cell division for growth and repair, not sperm production. Interstitial cells are found in the testes but are responsible for producing testosterone, not the maturation of spermatids into sperm cells. Therefore, option D is the correct choice as it specifically relates to the transformation of spermatids into sperm cells in the testes.
Question 3 of 5
The distal portion of the male urethra ________. that runs the length of the penis is the epididymis, ductus (vas) ________.
Correct Answer: D
Rationale: The correct answer is D because the question is referring to the male urethra, not the epididymis or vas deferens. The distal portion of the male urethra that runs the length of the penis is the membranous urethra and the spongy (penile) urethra. A and B are incorrect as they mention the prostatic urethra, which is not the distal portion that runs the length of the penis. Choice C is incorrect as it only mentions the membranous urethra and does not address the full distal portion.
Question 4 of 5
For fertilization to be accomplished, of the secondary sex characteristics sperm release enzymes to break seen in young women? down the corona radiata from their
Correct Answer: D
Rationale: The correct answer is D: acrosomes. Acrosomes are specialized vesicles in the head of the sperm that contain enzymes to help the sperm penetrate the outer layer of the egg during fertilization. Enlargement of the accessory organs (choice A), mitochondria (choice B), and breast development (choice C) are not directly related to the process of fertilization and do not involve the release of enzymes to break down the corona radiata. Acrosomes play a crucial role in the fertilization process by facilitating the penetration of the egg's protective layers, making choice D the correct answer.
Question 5 of 5
Which of the following statements is incorrect?
Correct Answer: A
Rationale: The correct answer is A because luteinising hormone (LH) and follicle stimulating hormone (FSH) are not secreted by the hypothalamus, but by the anterior pituitary gland. LH stimulates Leydig cells to produce testosterone, not the hypothalamus. Testosterone stimulates sertoli cells, not the other way around. Inhibin is indeed secreted by sertoli cells, but it does not relate to the incorrect statement regarding the origin of LH and FSH.