Nokea
The deferent duct joins with the ........ and forms.........:
- A. the seminal vesicle duct;
- B. the urethra;
- C. the ejaculatory duct;
- D. the epididymal duct;
Correct Answer: C
Rationale: The correct answer is C: the ejaculatory duct. The deferent duct, also known as the vas deferens, joins with the seminal vesicle duct to form the ejaculatory duct. This is where sperm from the testes and fluid from the seminal vesicles combine before entering the urethra during ejaculation. The other choices are incorrect because the seminal vesicle duct does not directly join with the deferent duct, the urethra is not formed by the deferent duct, and the epididymal duct is not involved in the formation of the ejaculatory duct.
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Which of these includes the other terms?
- A. labia
- B. clitoris
- C. vulva
- D. vestibular glands
Correct Answer: C
Rationale: The correct answer is C: vulva. The vulva includes the labia, clitoris, and vestibular glands. The labia are the outer folds of skin, the clitoris is a highly sensitive erectile structure, and the vestibular glands are located around the vaginal opening. The vulva encompasses all these structures, making it the most inclusive term among the options provided. The other choices are incorrect because they are specific structures that are part of the vulva but do not encompass all the other terms listed.
The development strategy where the young develop within their mother's uterus and obtain nourishment from the mother via placenta is best described as
- A. Oviparity.
- B. Viviparity.
- C. Semelparity.
- D. Ovoviviparity.
Correct Answer: B
Rationale: The correct answer is B: Viviparity. Viviparity refers to the development strategy where young develop within the mother's uterus and receive nourishment through the placenta. This is the best description for the scenario provided.
A: Oviparity involves laying eggs externally.
C: Semelparity is a reproductive strategy where an organism reproduces only once in its lifetime.
D: Ovoviviparity is a combination of oviparity and viviparity, where eggs are retained within the mother's body until they hatch.
Regarding gross anatomy of male reproductive system
- A. Dartos muscle is responsible to raise and lower the testes
- B. Ductus deferens penetrate the prostate gland to connect with prostatic urethra
- C. Anterior lobe of prostate gland is the main glandular tissue
- D. Buck's fascia encloses body of penis
Correct Answer: B
Rationale: The correct answer is B because the ductus deferens penetrates the prostate gland to connect with the prostatic urethra, forming the ejaculatory duct. This allows for the transport of sperm from the epididymis to the urethra during ejaculation.
A: Dartos muscle is responsible for wrinkling the scrotal skin but not raising and lowering the testes.
C: The anterior lobe of the prostate gland mainly consists of fibromuscular tissue, not glandular tissue.
D: Buck's fascia surrounds the corpora cavernosa and the corpus spongiosum of the penis, not the body of the penis itself.
Which structure is the site of sperm production?
- A. Vas deferens
- B. Seminiferous tubules
- C. Albuginea
- D. Epididymis
Correct Answer: B
Rationale: The correct answer is B: Seminiferous tubules. These tubules are located within the testes and are the specific structures where sperm production occurs through a process called spermatogenesis. Sperm cells are produced within the seminiferous tubules and then mature as they move through the epididymis (choice D) and vas deferens (choice A). The albuginea (choice C) is the tough outer covering of the testes and does not play a direct role in sperm production. Therefore, the seminiferous tubules are the primary site for sperm production in the male reproductive system.
The pregnancy period is:
- A. 120 days;
- B. nine weeks;
- C. 280 weeks;
- D. 280 days;
Correct Answer: D
Rationale: The correct answer is D: 280 days. The pregnancy period, also known as gestation, typically lasts around 280 days from the first day of the last menstrual period to the birth of the baby. This duration is calculated based on the average length of a full-term pregnancy, which is approximately 40 weeks. It is important to note that individual pregnancies may vary slightly in duration, but the standard reference is 280 days.
Explanation of other choices:
A: 120 days - This is too short for a full-term pregnancy.
B: Nine weeks - This is only around 63 days, which is far less than the average gestation period.
C: 280 weeks - This is equivalent to around 1960 days, which is much longer than a typical pregnancy duration.