Nokea
Which of the following is a steroid?
- A. FSH
- B. LH
- C. estrogen
- D. GnRH
Correct Answer: C
Rationale: The correct answer is C: estrogen. Estrogen is a type of steroid hormone derived from cholesterol. Steroids are a specific group of lipids characterized by a particular molecular structure. Estrogen plays a vital role in the development and regulation of the female reproductive system.
Choice A, FSH, and choice B, LH, are both peptide hormones, not steroids. Peptide hormones are made up of amino acids and are not derived from cholesterol.
Choice D, GnRH, is also a peptide hormone that regulates the release of other hormones in the body, particularly in the reproductive system.
In summary, estrogen is the only steroid hormone among the options provided, making it the correct choice.
You may also like to solve these questions
How does a nurse recognize when a patient has a testicular torsion?
- A. The nurse sees a light red glow on transillumination of the scrotum.
- B. The nurse palpates testicular edema that is painless.
- C. The patient reports a pulling sensation and dull ache of the scrotum.
- D. The patient complains of sudden onset of severe pain with edema of the scrotum.
Correct Answer: D
Rationale: The correct answer is D because testicular torsion presents with sudden onset of severe pain and swelling in the scrotum. This is due to the twisting of the spermatic cord, leading to compromised blood flow to the testicle. The severe pain is a key indicator of this emergency condition, as it indicates ischemia and necrosis of the testicle if not promptly treated.
Choice A is incorrect because a light red glow on transillumination is not a typical finding in testicular torsion. Choice B is incorrect because testicular edema in torsion is usually associated with pain. Choice C is incorrect because a pulling sensation and dull ache are more commonly seen in conditions like epididymitis rather than testicular torsion.
In order for milk to flow from the nipple of the mother into the mouth of the nursing infant, which of the following must occur?
- A. Myoepithelial cells must relax
- B. Prolactin levels must fall
- C. Oxytocin secretion from the posterior pituitary must take place
- D. The baby’s mouth must develop a strong negative pressure over the nipple
Correct Answer: C
Rationale: The correct answer is C because oxytocin is responsible for stimulating the contraction of myoepithelial cells around the alveoli in the mammary glands, causing milk ejection. This process is known as the let-down reflex. In contrast, choice A (myoepithelial cells must relax) is incorrect because they need to contract to push milk out. Choice B (prolactin levels must fall) is incorrect because prolactin is responsible for milk production, not milk ejection. Choice D (the baby's mouth must develop a strong negative pressure over the nipple) is incorrect because it is the mother's hormone release, not the baby's action, that causes milk flow.
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.
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.
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.