Which of the following is not a source of estrogen?

Correct Answer: C

Rationale: The correct answer is C: pituitary. Estrogen is primarily produced by the ovaries, with a small amount also coming from the adrenal glands. The pituitary gland is not a direct source of estrogen production but plays a role in regulating the release of hormones that stimulate estrogen production in the ovaries. The follicle, on the other hand, is a structure within the ovary where estrogen is produced during the menstrual cycle. Therefore, C is the correct answer as the pituitary gland does not directly produce estrogen.

Correct Answer: A

Rationale: The correct answer is A: Goat. Viviparous animals give birth to live young instead of laying eggs. Goats fall under this category as they give birth to live kids. Ducks (B) are oviparous, laying eggs. Crocodiles (C) are also oviparous, laying eggs. Choice D is incorrect as goats are viviparous animals.

Correct Answer: A

Rationale: The correct answer is A: bulbourethral gland. These glands are located inferior to the prostate on either side of the membranous urethra within the deep muscles of the perineum. They secrete a clear mucus-like fluid that neutralizes acidic urine in the urethra. The other choices are incorrect: B: Seminal vesicles are located posterior to the bladder and contribute to seminal fluid production. C: Ejaculatory ducts connect the vas deferens to the urethra and are not located in the deep muscles of the perineum. D: Urethral ducts are not a specific anatomical structure and do not exist in this context.

Correct Answer: A

Rationale: The correct answer is A: Lymphatic vessels. Line "A" typically points to lymphatic vessels because they play a crucial role in draining excess fluid and waste products from tissues. They help maintain fluid balance and immunity. The other choices are incorrect because the pampiniform plexus is a network of veins in the spermatic cord, the internal spermatic fascia is a layer of connective tissue surrounding the spermatic cord, and the spermatic cord is a structure containing blood vessels, nerves, and ducts that support the testes. These structures are closely related anatomically but serve different functions compared to lymphatic vessels.

Correct Answer: C

Rationale: The correct answer is C: Candidiasis. Candidiasis is a fungal infection caused by the Candida fungus, commonly affecting the reproductive system. It can cause symptoms like itching, burning, and abnormal discharge. A: Syphilis is a bacterial infection transmitted through sexual contact. B: Gonorrhea is a bacterial infection affecting the reproductive system. D: Genital Herpes is a viral infection that affects the genital area. In summary, Candidiasis is the only fungal disease listed, making it the correct choice for a fungal infection of the reproductive system.