Nokea
Estrogen is required for normal reproductive function in the male. Where is the principal site of estrogen synthesis in the male?
- A. Leydig cells
- B. Osteoblasts
- C. Liver cells
- D. Prostate cells
Correct Answer: C
Rationale: Rationale:
1. The correct answer is C: Liver cells. The liver is the principal site of estrogen synthesis in the male.
2. Liver cells contain the enzyme aromatase, which converts androgens into estrogens.
3. Estrogen plays a crucial role in maintaining normal reproductive function in males.
4. Leydig cells (Choice A) are responsible for testosterone production, not estrogen synthesis.
5. Osteoblasts (Choice B) are bone cells involved in bone formation, not estrogen synthesis.
6. Prostate cells (Choice D) are involved in prostate function, not estrogen synthesis.
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The superior portion of the uterus is the _____.
- A. body
- B. cervix
- C. fundus
- D. infundibulum
Correct Answer: C
Rationale: The correct answer is C: fundus. The fundus is the superior portion of the uterus, located above the entry point of the fallopian tubes. It is the part of the uterus where the fertilized egg implants and grows during pregnancy. The body of the uterus (choice A) is the main central portion, the cervix (choice B) is the lower narrow part that connects to the vagina, and the infundibulum (choice D) is a part of the fallopian tube, not the uterus. Thus, the fundus is the correct choice as it specifically refers to the superior portion of the uterus.
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.
Of the following antibiotics, which one is used to treat chlamydia?
- A. Acyclovir
- B. Ciprofloxacin
- C. Tetracycline
- D. Ceftriaxone
Correct Answer: C
Rationale: Tetracycline is commonly used to treat chlamydia infections.
On inspection of the internal structure of the vagina, the nurse notes a rounded protrusion on the posterior wall of the vagina. How does the nurse document this finding?
- A. Rectocele
- B. Cystocele
- C. Bartholin cyst
- D. Nabothian cyst
Correct Answer: A
Rationale: The correct answer is A: Rectocele. A rectocele is a herniation of the anterior rectal wall into the posterior vaginal wall. The rounded protrusion on the posterior wall of the vagina indicates a rectocele. This finding is documented as a rectocele due to the specific anatomical location and nature of the protrusion.
Summary of other choices:
B: Cystocele - A cystocele is a herniation of the bladder into the anterior vaginal wall, not the posterior wall.
C: Bartholin cyst - Bartholin cyst is a fluid-filled swelling in the Bartholin gland near the vaginal opening, not on the posterior wall.
D: Nabothian cyst - Nabothian cysts occur on the cervix and are not related to protrusions on the posterior wall of the vagina.
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.