Nokea
Which of the following is suitable for the fertilization of an egg?
- A. Sperm
- B. Spermatid
- C. Primary spermatocyte
- D. Spermatogonium
Correct Answer: A
Rationale: The correct answer is A: Sperm. Sperm is the mature male reproductive cell capable of fertilizing an egg. It carries genetic material and is designed for the process of fertilization. Spermatid (B) is an immature sperm cell not yet capable of fertilizing an egg. Primary spermatocyte (C) is a cell undergoing meiosis to produce spermatids. Spermatogonium (D) is a stem cell that gives rise to spermatocytes but is not directly involved in fertilization. Therefore, only sperm (A) is suitable for fertilizing an egg.
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At the time of ovulation, each secondary oocyte is surrounded by a single layer of cells known as a(n) ________.
- A. vesicular (Graafian) follicle
- B. primary follicle
- C. primordial follicle
- D. uterine (fallopian) follicle
Correct Answer: A
Rationale: The correct answer is A: vesicular (Graafian) follicle. At the time of ovulation, the secondary oocyte is surrounded by this structure, which is a mature follicle containing a fluid-filled antrum. This structure is essential for the release of the oocyte during ovulation. The other choices, B: primary follicle, C: primordial follicle, and D: uterine (fallopian) follicle, are incorrect because primary follicles are immature, primordial follicles are the earliest stage of follicle development, and uterine (fallopian) follicle is not a correct anatomical term.
Which of the following tissues secrete proteolytic enzymes to liquefy semen?
- A. bulbourethral gland
- B. urethra
- C. prostate
- D. testis
Correct Answer: C
Rationale: The correct answer is C: prostate. The prostate gland secretes proteolytic enzymes such as prostate-specific antigen (PSA) to liquefy semen. This aids in sperm mobility and overall fertility. The other choices are incorrect because:
A: bulbourethral gland secretes a clear fluid to lubricate the urethra during sexual arousal.
B: urethra is a passageway for urine and semen but does not secrete proteolytic enzymes.
D: testis produces sperm cells but does not secrete enzymes to liquefy semen.
Which gland produces thick, clear mucus that cleanses the penile urethra of acidic urine?
- A. Testes
- B. Seminal vesicles
- C. Prostate
- D. Bulbourethral glands
Correct Answer: D
Rationale: The correct answer is D: Bulbourethral glands. These glands produce thick, clear mucus that cleanses the penile urethra of acidic urine before ejaculation. This mucus helps neutralize the acidity of urine, creating a more hospitable environment for sperm to travel through. The other choices are incorrect because:
A: Testes produce sperm, not mucus.
B: Seminal vesicles produce a fluid rich in fructose to nourish sperm.
C: Prostate produces a milky fluid that aids in sperm motility.
The medical term expressing suture of the neck of the uterus is __________
- A. cervicography
- B. perineorrhaphy
- C. cervicorrhapy
- D. cervicorrhexis
Correct Answer: C
Rationale: The correct answer is C: cervicorrhaphy. "Cervico-" refers to the neck of the uterus, and "-rrhaphy" means suture. Therefore, cervicorrhaphy is the correct term for the procedure of suturing the neck of the uterus.
A: Cervicography is a diagnostic imaging technique, not a procedure for suturing.
B: Perineorrhaphy involves suturing the perineum, not the neck of the uterus.
D: Cervicorrhexis refers to cutting or incising the neck of the uterus, not suturing it.
The hormone that works with estrogen to prepare the endometrium for implantation of a fertilized egg is
- A. LH
- B. FSH
- C. ADH
- D. progesterone
Correct Answer: D
Rationale: Progesterone is the correct answer because it is the hormone that works with estrogen to prepare the endometrium for implantation of a fertilized egg. Progesterone helps thicken the endometrium, creating a favorable environment for implantation. LH and FSH are involved in ovulation and follicle development, not endometrial preparation. ADH is antidiuretic hormone, which regulates water balance in the body, not related to endometrial preparation.