Nokea
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.
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Which hormone is necessary for the growth of endometrial glands, which are important for the sustenance of a growing embryo until its implantation?
- A. Luteinizing hormone (LH)
- B. Testosterone
- C. Progesterone
- D. Inhibin
Correct Answer: C
Rationale: The correct answer is C: Progesterone. Progesterone is necessary for the growth of endometrial glands as it prepares the endometrium for implantation of the embryo. LH is responsible for ovulation, not endometrial gland growth. Testosterone is a male sex hormone and not directly involved in endometrial gland growth. Inhibin regulates FSH secretion, not endometrial gland growth.
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.
Also called the birth canal, this is a muscular passageway from the cervix to the outside of the female's body:
- A. Vagina
- B. Uterus
- C. Fallopian tube
- D. obstetrician
Correct Answer: A
Rationale: The correct answer is A: Vagina. The vagina is the muscular passageway from the cervix to the outside of the female's body, serving as the birth canal. It is where sexual intercourse occurs and where menstrual flow exits the body. The uterus (B) is the organ where a fertilized egg implants and develops into a fetus, not the birth canal. Fallopian tubes (C) are where fertilization of an egg typically occurs, not part of the birth canal. Obstetrician (D) is a medical professional specializing in childbirth and pregnancy, not a part of the female reproductive anatomy.
Regarding male reproductive system
- A. Hypospodiasis is caused by the failure of urethral groove to close
- B. The connection between tunica vaginalis and abdominal cavity close after the descendant of testis
- C. SRY protein causes the Wolffian duct to regress
- D. Ampulla of fallopian tube is the commonest site for fertilization
Correct Answer: C
Rationale: The correct answer is C because the SRY protein is responsible for causing the regression of the Wolffian duct in male development. This process leads to the formation of male reproductive structures such as the vas deferens. The other choices are incorrect because:
A: Hypospadias is actually caused by the incomplete closure of the urethral groove during development.
B: The connection between the tunica vaginalis and the abdominal cavity closes after the descent of the testis, not before.
D: The ampulla of the fallopian tube is not involved in male reproduction; it is actually the site of fertilization in the female reproductive system.
Reproduction in humans usually requires
- A. the process of cloning
- B. mitotic cell division of gametes
- C. gametes with chromosomes that are not paired
- D. the external fertilization of sex cells
Correct Answer: C
Rationale: The correct answer is C because reproduction in humans typically involves the fusion of gametes with chromosomes that are not paired, resulting in the formation of a zygote with a complete set of paired chromosomes. This process is known as sexual reproduction. Choice A, cloning, does not involve the fusion of gametes and is a form of asexual reproduction. Choice B, mitotic cell division of gametes, is incorrect as gametes undergo meiosis to form haploid cells, not mitosis. Choice D, external fertilization of sex cells, is not typical in humans as fertilization usually occurs internally.