The ducts or tubes responsible for the ________. receiving the ovulated oocyte and

Correct Answer: D

Rationale: The correct answer is D: uterine (fallopian) tubes. These tubes are responsible for receiving the ovulated oocyte (egg) and providing the site for fertilization. The fallopian tubes are specifically designed to transport the egg from the ovary to the uterus for potential fertilization by sperm. Choice A, glans penis, is incorrect as it is part of the male reproductive system and not involved in receiving the ovulated egg. Choice B, shaft, is also incorrect as it refers to the main part of the penis and is not related to female reproductive functions. Choice C, scrotum, is incorrect as it is part of the male reproductive system and has no role in receiving the ovulated egg.

Correct Answer: C

Rationale: The correct answer is C: Braxton Hicks contractions. These contractions are weak, irregular contractions that occur in the uterus during pregnancy. They are often referred to as "practice contractions" as the body prepares for labor. The presence of more oxygen and removal of waste from the uterus can trigger Braxton Hicks contractions. Choice A, dystocia, refers to difficult or prolonged labor, not weak contractions. Choice B, first week, is not relevant to the question as Braxton Hicks contractions typically occur later in pregnancy. Choice D, second week, is also not correct as Braxton Hicks contractions occur later in pregnancy, typically in the third trimester.

Correct Answer: D

Rationale: During the follicular phase, the correct answer is D because it is when the ovaries produce estrogen to stimulate the thickening of the uterine lining. This prepares the uterus for potential implantation of a fertilized egg. In contrast, choice A is incorrect because the corpus luteum is not formed until after ovulation. Choice B is incorrect as the corpus luteum forms after the egg is released. Choice C is incorrect because progesterone is mainly secreted during the luteal phase to maintain the uterine lining.

Correct Answer: D

Rationale: The correct answer is D because the first polar body is formed during the first meiotic division of the primary oocyte before birth. The primary oocyte undergoes meiosis I to form the secondary oocyte and the first polar body. This process occurs during fetal development, not after birth. Choice A is incorrect because the primary oocyte completes meiosis I to form the secondary oocyte and the first polar body before ovulation. Choice B is incorrect because the primary oocyte forms the first polar body before birth, not after birth. Choice C is incorrect because the first polar body is formed during meiosis I of the primary oocyte, not after fertilization.

Correct Answer: C

Rationale: The correct answer is C: Vulva. The vulva is the fleshy outer part of the female reproductive system that includes the labia majora, labia minora, clitoris, vaginal opening, and urethral opening. It is where the opening to the vagina is located. The uterus (A) is a hollow, muscular organ where the fetus develops during pregnancy. The ovary (B) is the female reproductive organ that produces eggs and hormones. Vaginitis (D) is inflammation or infection of the vagina, not the outer part of the reproductive system. Therefore, the correct answer is C as it accurately describes the external female genitalia where the vaginal opening is situated.