Nokea
What is the role of the corpus luteum during the menstrual cycle?
- A. The corpus luteum produces estrogen to maintain the endometrium.
- B. The corpus luteum produces progesterone to maintain the endometrium.
- C. The corpus luteum produces testosterone to inhibit ovulation.
- D. The corpus luteum has no significant role during the menstrual cycle.
Correct Answer: B
Rationale: The correct answer is B: The corpus luteum produces progesterone to maintain the endometrium during the menstrual cycle. This hormone helps prepare the uterine lining for implantation in case fertilization occurs. Choice A is incorrect because estrogen is mainly produced by the developing follicles in the ovaries. Choice C is incorrect as testosterone is produced in smaller amounts by the ovaries and adrenal glands but does not play a significant role in maintaining the endometrium. Choice D is incorrect as the corpus luteum plays a crucial role in producing progesterone to support the endometrium.
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What type of epithelium lines the vagina?
- A. Ciliated epithelium.
- B. Squamous epithelium.
- C. Columnar epithelium.
- D. Transitional epithelium.
Correct Answer: B
Rationale: The correct answer is B: Squamous epithelium. The vagina is lined with non-keratinized stratified squamous epithelium. This type of epithelium provides protection against abrasion and pathogens. Choice A, Ciliated epithelium, is incorrect as ciliated epithelium is found in areas like the fallopian tubes to help move the egg towards the uterus. Choice C, Columnar epithelium, is incorrect as columnar epithelium is typically found in areas like the intestines. Choice D, Transitional epithelium, is incorrect as this type of epithelium is found in areas like the urinary bladder.
What term is used to refer to the fertilized ovum?
- A. Zygote
- B. Embryo
- C. Foetus
- D. Pregnancy
Correct Answer: A
Rationale: The correct answer is A, Zygote. A zygote is formed when a sperm cell fertilizes an egg cell. It is the initial stage of prenatal development. Choice B, Embryo, refers to the stage of prenatal development after the zygote and before the foetus. Choice C, Foetus, is the stage of prenatal development after the embryo. Choice D, Pregnancy, is a broader term referring to the condition of having a developing baby in the uterus.
Which one is not a barrier method for birth control?
- A. Diaphragms
- B. Cervical caps
- C. Vaults
- D. Intrauterine Devices (IUDs)
Correct Answer: D
Rationale: The correct answer is D, Intrauterine Devices (IUDs). Barrier methods of birth control physically block sperm from reaching the egg. Diaphragms, cervical caps, and vaults are examples of barrier methods as they create a barrier that prevents sperm from reaching the cervix. In contrast, IUDs work by altering the cervical mucus and uterine lining, making it difficult for sperm to reach the egg, but they do not physically block sperm like barrier methods do.
A client 12 weeks pregnant comes to the emergency department with abdominal cramping and moderate vaginal bleeding. Speculum examination reveals 2 to 3 cm cervical dilation. The nurse would document these findings as which of the following?
- A. Threatened abortion
- B. Inevitable abortion
- C. Complete abortion
- D. Missed abortion
Correct Answer: B
Rationale: The nurse would document these findings as an inevitable abortion. Inevitable abortion is characterized by cervical dilation with or without rupture of membranes and is associated with moderate to heavy vaginal bleeding. 'Threatened abortion' (choice A) refers to vaginal bleeding with a closed cervical os and no tissue passage. 'Complete abortion' (choice C) involves the passage of all products of conception. 'Missed abortion' (choice D) is the retention of a failed intrauterine pregnancy for an extended period without symptoms.
What is the role of the prolactin hormone?
- A. Stimulates the development of milk-producing tissue.
- B. Stimulates milk storage.
- C. Stimulates milk production.
- D. Stimulates milk ejection.
Correct Answer: C
Rationale: The correct answer is C: 'Stimulates milk production.' Prolactin hormone is responsible for promoting the production of milk in the mammary glands. This hormone does not directly stimulate the development of milk-producing tissue (Choice A), milk storage (Choice B), or milk ejection (Choice D). While these functions are related to lactation, the primary role of prolactin is to facilitate milk production.