Biology Human Reproductive System

Biology Human Reproductive System Related

Review Biology Human Reproductive System related questions and content

During the latter stages of pregnancy, many women experience an increase in body hair growth in a masculine pattern. What is the explanation for this?

  • A. The ovaries secrete some testosterone along with the large amounts of estrogen produced late in pregnancy
  • B. The fetal ovaries and testes secrete androgenic steroids
  • C. The maternal and fetal adrenal glands secrete large amounts of androgenic steroids that are used by the placenta to form estrogen
  • D. The placenta secretes large amounts of estrogen, some of which is metabolized to testosterone
Correct Answer: C

Rationale: Step 1: Maternal and fetal adrenal glands secrete androgenic steroids.
Step 2: Placenta uses these androgenic steroids to form estrogen.
Step 3: Increased estrogen levels can lead to body hair growth.
Therefore, the correct answer (C) is supported by the process of androgenic steroids being secreted by the adrenal glands, utilized by the placenta to form estrogen, resulting in increased body hair growth.

Summary:
A (The ovaries secrete some testosterone along with estrogen) is incorrect as testosterone is not primarily secreted by the ovaries late in pregnancy.
B (The fetal ovaries and testes secrete androgenic steroids) is incorrect as the primary source of androgenic steroids in this context is the adrenal glands, not fetal ovaries or testes.
D (The placenta secretes estrogen, some of which is metabolized to testosterone) is incorrect as the main source of estrogen in this scenario is from the and

You may also like to solve these questions

What does line “G” point to?

  • A. Dartos muscle
  • B. Cremaster muscle
  • C. Fascia
  • D. Tunica albuginea
Correct Answer: B

Rationale: The correct answer is B: Cremaster muscle. Line "G" points to the cremaster muscle because it is the muscle responsible for raising and lowering the testes to regulate their temperature. This muscle is located within the spermatic cord and is crucial for maintaining optimal conditions for sperm production. The other choices are incorrect because:
A: The dartos muscle is responsible for wrinkling the scrotal skin but is not depicted by line "G."
C: Fascia refers to connective tissue and does not match the description of the muscle shown by line "G."
D: The tunica albuginea is a fibrous coat around the testis but is not represented by line "G."

Maintaining adequate nutrition for the patient during chemotherapy is often problematic because of nausea, vomiting, and anorexia. Which of the following nursing measures would be most effective in combating nutritional depletion?

  • A. Reduce food intake and increase fluids during the 4 days following chemotherapy to lessen nausea
  • B. If leukopenia occurs, adjust the diet to high-caloric, low-protein
  • C. Weigh the patient three times a week
  • D. Offer snack supplements, and frequent small feedings
Correct Answer: D

Rationale: Frequent small feedings and snacks help maintain nutrition despite nausea and anorexia.

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.

Which of the following is NOT a sexually transmitted disease?

  • A. Syphilis
  • B. Gonorrhea
  • C. Cough
  • D. Genital Warts
Correct Answer: C

Rationale: The correct answer is C: Cough. Sexually transmitted diseases (STDs) are transmitted through sexual activity, not through coughing. Syphilis (A), Gonorrhea (B), and Genital Warts (D) are all STDs that are transmitted through sexual contact. Cough (C) is not a sexually transmitted disease as it is typically spread through respiratory droplets. Therefore, C is the correct answer as it does not fit the criteria of being an STD.

We can state the following about the uterus:

  • A. it is made up of corpus and cervix;
  • B. the vagina is inserted on the cervix;
  • C. the uterine cavity displays a mucous membrane that undergoes cyclical modifications;
  • D. it has striated musculature, with longitudinal, radial and circular fibers;
Correct Answer: C

Rationale: Step 1: The uterine cavity displays a mucous membrane that undergoes cyclical modifications due to hormonal changes during the menstrual cycle.
Step 2: This mucous membrane is essential for embryo implantation and plays a crucial role in pregnancy.
Step 3: The cyclical modifications of the mucous membrane are necessary for the shedding of the endometrium during menstruation.
Summary: Choice C is correct because it accurately describes a key function of the uterus related to the menstrual cycle. Choices A, B, and D are incorrect as they do not address the specific function of the uterine cavity and its mucous membrane modifications.

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