Nokea
The major hormone secreted from granulosa cells is
- A. Progesterone
- B. Estrogen
- C. Testosterone
- D. Aldosterone
Correct Answer: B
Rationale: The correct answer is B: Estrogen. Granulosa cells are located in the ovarian follicles and are responsible for producing estrogen, a key female sex hormone. Estrogen plays a crucial role in the menstrual cycle, pregnancy, and development of secondary sexual characteristics. Progesterone is mainly produced by the corpus luteum, testosterone is primarily produced by the testes in males, and aldosterone is synthesized in the adrenal glands. Granulosa cells do not secrete these hormones, making choices A, C, and D incorrect.
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Which of the following are the advantages of a vaginal hysterectomy over an abdominal hysterectomy?
- A. Fewer complications
- B. Increased recovery time
- C. Radical hysterectomy can even be done laparoscopically
- D. No pain
Correct Answer: A
Rationale: Vaginal hysterectomies generally have fewer complications and quicker recovery times compared to abdominal procedures.
A nurse goes to a high school to teach students about reducing the risk of sexually transmitted infections. Which of the following is the best answer for providing information on the prevention of STIs?
- A. Have monogamous sex with an infected partner.
- B. Abstain from sexual activities.
- C. Wash any areas where there has been indirect contact with semen or vaginal mucus.
- D. Avoid protected sex until you and sexual partners have completed treatment.
Correct Answer: B
Rationale: Abstinence is the most effective way to prevent STIs.
The region between the vaginal orifice and anus is called:
- A. Peritoneum
- B. Cul-d
- C. sac
- D. Perineum
Correct Answer: D
Rationale: The correct answer is D: Perineum. The perineum is the region between the vaginal orifice and anus. It includes the external genitalia and the area surrounding the anus. The peritoneum (A) is a membrane lining the abdominal cavity, not related to this specific region. Cul-de-sac (B) refers to a pouch-like structure in the abdominal or pelvic cavity, not the area specified in the question. Sac (C) is a general term and does not specifically denote the region between the vaginal orifice and anus. Therefore, the correct answer is D as it accurately describes the anatomical location in question.
Which of the following structures is often referred to as the bag of water?
- A. Urinary bladder
- B. Gall bladder
- C. Amniotic sac
- D. Uterus
Correct Answer: C
Rationale: The correct answer is C: Amniotic sac. This structure is often referred to as the "bag of water" because it is a fluid-filled sac that surrounds and protects the developing fetus during pregnancy. The amniotic sac provides cushioning and maintains a stable environment for the fetus to grow. It is essential for the baby's development and acts as a barrier against infections.
Choice A: Urinary bladder - This structure is responsible for storing urine and is not typically referred to as the bag of water.
Choice B: Gall bladder - This organ stores bile produced by the liver and aids in digestion, not related to pregnancy or fetal development.
Choice D: Uterus - While the uterus is involved in pregnancy and fetal development, it is not commonly referred to as the bag of water.
One function of the placenta in a human is to
- A. surround the embryo and protect it from shock
- B. allow for mixing of maternal blood with fetal blood
- C. act as the heart of the fetus, pumping blood until the fetus is born
- D. permit passage of nutrients and oxygen from the mother to the fetus
Correct Answer: D
Rationale: The correct answer is D because the placenta serves as a barrier between the maternal and fetal bloodstreams, allowing for the exchange of nutrients, oxygen, and waste products. This is crucial for the fetus's growth and development. Choice A is incorrect because the placenta does not physically surround the embryo. Choice B is incorrect as maternal and fetal blood do not mix due to the placental barrier. Choice C is incorrect as the heart of the fetus pumps blood, not the placenta.