Nokea
The ovary is located in the:
- A. abdominal cavity;
- B. pelvic cavity;
- C. inguinal region;
- D. lumbar region;
Correct Answer: B
Rationale: The correct answer is B: pelvic cavity. The ovary is located in the pelvic cavity because it is part of the female reproductive system and is situated within the pelvis. It is specifically housed in the adnexal region of the pelvis, attached to the uterus via ligaments. The abdominal cavity (choice A) is too high up in the body to house the ovary. The inguinal region (choice C) is located in the lower abdomen near the groin and does not contain the ovary. The lumbar region (choice D) is located in the lower back and is not where the ovary is located.
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What normally inhibits testosterone production?
- A. increasing FSH
- B. increasing ICSH
- C. decreasing ICSH
- D. decreasing FSH
Correct Answer: B
Rationale: The correct answer is B because increasing ICSH (Luteinizing Hormone) inhibits testosterone production by exerting negative feedback on the testes. ICSH stimulates Leydig cells in the testes to produce testosterone. When testosterone levels rise, it signals the pituitary gland to decrease ICSH secretion, thus inhibiting further testosterone production.
A: Increasing FSH (Follicle-Stimulating Hormone) does not inhibit testosterone production.
C: Decreasing ICSH would lead to reduced stimulation of Leydig cells and lower testosterone production.
D: Decreasing FSH would not directly inhibit testosterone production as FSH primarily stimulates sperm production in the testes.
The ejaculatory duct is the union of the vas deferens and _____.
- A. seminal vesicle
- B. prostate
- C. ampulla
- D. urethra
Correct Answer: A
Rationale: The correct answer is A: seminal vesicle. The ejaculatory duct is formed by the union of the vas deferens and the seminal vesicle. The seminal vesicle contributes seminal fluid that mixes with sperm from the vas deferens to form semen. The prostate gland surrounds the ejaculatory duct but does not directly join it. The ampulla is an enlarged portion of the vas deferens but does not directly connect to the ejaculatory duct. The urethra is the tube that carries urine and semen out of the body but is not part of the ejaculatory duct. Therefore, the correct answer is A because the seminal vesicle directly joins with the vas deferens to form the ejaculatory duct.
The vascularization of the ovary is provided by the:
- A. the gonadal artery, of the abdominal aorta;
- B. the ovarian branch of the uterine artery;
- C. the ovarian artery, of the external iliac artery;
- D. the Fallopian artery;
Correct Answer: B
Rationale: The correct answer is B: the ovarian branch of the uterine artery. The ovary receives its blood supply primarily from the ovarian artery, which arises from the abdominal aorta. However, the ovarian artery is a short vessel that anastomoses with the uterine artery, providing the main vascularization of the ovary. The other choices are incorrect because: A) the gonadal artery arises from the internal iliac artery, not the abdominal aorta; C) the ovarian artery does not arise from the external iliac artery; D) there is no specific Fallopian artery responsible for ovarian vascularization.
The male gonads have both sperm-
- A. producing
- B. estrogen functions and are called ________.
- C. progesterone
- D. testes
Correct Answer: D
Rationale: Step-by-step rationale for why the correct answer is D:
1. Testes are the male gonads responsible for producing sperm.
2. The testes function as the primary reproductive organ in males.
3. Sperm production occurs in the seminiferous tubules within the testes.
4. The testes also produce testosterone, the primary male sex hormone.
Summary of why other choices are incorrect:
A: Producing - While testes do produce sperm, this choice lacks specificity regarding the male gonads.
B: Estrogen functions and are called ________ - Estrogen is a female sex hormone, not produced by male gonads.
C: Progesterone - Progesterone is a female sex hormone produced mainly by the ovaries, not by male gonads.
The medical term expressing surgical fixation of the breast(s) is __________
- A. mammoplasty
- B. Mastopexy
- C. hysteropexy
- D. vaginoplasty
Correct Answer: A
Rationale: The correct answer is A: mammoplasty. "Mammo-" refers to the breast, and "-plasty" indicates surgical repair or reconstruction. This term specifically denotes surgical fixation of the breast(s).
B: Mastopexy refers to a breast lift, not fixation.
C: Hysteropexy involves fixing the uterus, not the breast.
D: Vaginoplasty refers to surgical reconstruction of the vagina, not the breast.