_____________________ is a vascular organ that is formed within the uterine wall
- A. Amnion
- B. Chorion
- C. Placenta
- D. Endometrium
Correct Answer: C
Rationale: The correct answer is C: Placenta. The placenta is a vascular organ that develops within the uterine wall during pregnancy. It serves as a connection between the mother and fetus for nutrient and waste exchange. The amnion (A) and chorion (B) are fetal membranes, not vascular organs, and the endometrium (D) is the inner lining of the uterus where the placenta attaches.
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Middle layer of uterus is called:
- A. Endometrium
- B. Ectometrium
- C. Myometrium
- D. Perimetrium.
Correct Answer: C
Rationale: The correct answer is C: Myometrium. The myometrium is the middle layer of the uterus composed of smooth muscle tissue responsible for uterine contractions during childbirth. The endometrium (A) is the innermost layer responsible for menstruation and implantation. Ectometrium (B) is not a correct term. Perimetrium (D) is the outermost layer of the uterus. Therefore, C is the correct choice as it accurately represents the middle layer of the uterus.
Sperm production begins in the
- A. seminiferous tubules
- B. epididymis
- C. vas deferens
- D. ejaculatory duct
Correct Answer: A
Rationale: The correct answer is A: seminiferous tubules. Sperm production starts in the seminiferous tubules of the testes through a process called spermatogenesis, involving the division and maturation of germ cells. The other choices, B: epididymis, C: vas deferens, and D: ejaculatory duct, are incorrect as they are not sites of sperm production but rather play roles in sperm storage, transport, and ejaculation, respectively. The seminiferous tubules are specifically designed for sperm production, making them the correct choice in this context.
Spermatogenesis is a function of the _____.
- A. tunica albuginea
- B. rete testis
- C. seminiferous tubule
- D. seminal vesicle
Correct Answer: C
Rationale: The correct answer is C: seminiferous tubule. Spermatogenesis is the process of sperm production and occurs within the seminiferous tubules of the testes. These tubules contain specialized cells called germ cells that undergo meiosis to produce sperm. The tunica albuginea is a fibrous layer surrounding the testes, the rete testis is a network of tubules where sperm is transported, and the seminal vesicle is a gland that produces seminal fluid, not involved in sperm production. Therefore, the seminiferous tubule is the correct choice for spermatogenesis.
The external female reproductive organs include
- A. the vagina, the clitoris, and the mons pubis
- B. the hymen, the vaginal opening, and the uterus
- C. the vaginal opening, the labia majora, and the clitoris
- D. the hymen, the ovaries, and the clitoris
Correct Answer: C
Rationale: The correct answer is C because the external female reproductive organs typically include the vaginal opening, the labia majora, and the clitoris. The vaginal opening is where sperm enters and a baby exits during childbirth. The labia majora are the outer folds of skin that protect the vaginal and urethral openings. The clitoris is a highly sensitive sexual organ that plays a key role in sexual pleasure.
Option A is incorrect because it includes the mons pubis, which is not considered an external reproductive organ. Option B is incorrect because it includes the hymen, which is a thin membrane that may partially cover the vaginal opening but is not a consistent external organ. Option D is incorrect because it includes the ovaries, which are internal organs responsible for producing eggs, not external reproductive organs.
Vaginal discharge is one of the clinical manifestations in women with
- A. Vulvovaginal candidiasis
- B. Granuloma inguinale
- C. Gonorrhea
- D. Trichomoniasis
Correct Answer: D
Rationale: Correct Answer: D - Trichomoniasis
Rationale: Trichomoniasis is a sexually transmitted infection that commonly presents with vaginal discharge. The discharge is typically frothy, yellow-green, and has a strong odor. This distinguishes it from other causes of vaginal discharge.
Summary of Other Choices:
A: Vulvovaginal candidiasis - Typically presents with thick, white, cottage cheese-like discharge.
B: Granuloma inguinale - Rare bacterial infection causing painless genital ulcers, not associated with vaginal discharge.
C: Gonorrhea - May cause vaginal discharge, but typically associated with other symptoms like pelvic pain and abnormal bleeding.