Nokea
Which of the following statements relating to the corpus luteum is incorrect.
- A. the corpus luteum contains the zona pellucida
- B. the corpus luteum degrades if fertilization does not take place
- C. the corpus luteum is derived from the Latin word meaning yellow body.
- D. the corpus luteum develops from the remaining follicle after ovulation
Correct Answer: A
Rationale: The correct answer is A because the corpus luteum does not contain the zona pellucida. The zona pellucida is a glycoprotein layer surrounding the oocyte, not the corpus luteum. The other choices are incorrect because B is true - the corpus luteum degrades if fertilization does not occur; C is true - corpus luteum derives from Latin for yellow body; and D is true - the corpus luteum develops from the remaining follicle after ovulation.
You may also like to solve these questions
A patient asks when she can stop having Pap (Papanicolaou) tests. What is the nurse’s most appropriate response?
- A. Until you are no longer sexually active.
- B. Through age 65.
- C. Until you begin menopause.
- D. Through the end of menopause.
Correct Answer: B
Rationale: The correct answer is B: Through age 65. This is because current guidelines recommend that women continue to have Pap tests every 3-5 years until age 65, assuming previous tests have been normal. This age cutoff is based on the decreasing risk of cervical cancer with age and the low likelihood of developing new HPV infections after this age. Choices A, C, and D are incorrect because they do not align with the most up-to-date screening recommendations and may lead to unnecessary testing or missed opportunities for appropriate screening.
The uterine phase where the thickness of the endometrium doubles is the
- A. Menstrual phase
- B. Preovulatory phase
- C. Proliferative phase
- D. Follicular phase
Correct Answer: C
Rationale: The correct answer is C: Proliferative phase. During this phase, estrogen levels increase, stimulating the endometrium to thicken and proliferate. This prepares the uterus for potential implantation of a fertilized egg. The other choices are incorrect because: A: Menstrual phase is when the endometrium sheds, not thickens. B: Preovulatory phase is characterized by the maturation of the ovarian follicles, not endometrial thickening. D: Follicular phase is synonymous with the preovulatory phase and focuses on ovarian follicle development, not endometrial thickening.
Structurally, the testicle is made up of:
- A. intratesticular spermatic ducts;
- B. lobules, delineated by connective septa;
- C. the cortical zone, in the center;
- D. the medullar zone, at the periphery;
Correct Answer: B
Rationale: The correct answer is B: lobules, delineated by connective septa. The testicle is structurally organized into lobules separated by connective tissue septa. Each lobule contains seminiferous tubules where sperm production occurs. This organization allows for efficient production and transport of sperm.
Incorrect choices:
A: Intratesticular spermatic ducts - Incorrect, as the testicle contains seminiferous tubules, not spermatic ducts.
C: The cortical zone, in the center - Incorrect, as the testicle structure does not have a defined cortical zone.
D: The medullar zone, at the periphery - Incorrect, as the medullary zone is not at the periphery but rather towards the center of the testicle.
Choose the CORRECT statement regarding events that occur in metaphase II.
- A. Sister chromatids may no longer be identical to each other.
- B. Homologous chromosomes line up at metaphase plat
- C. Crossing over between homologous chromosomes occurs.
- D. Homologous chromosomes begin to separat
Correct Answer: A
Rationale: Correct Answer: A - Sister chromatids may no longer be identical to each other.
Rationale:
1. In metaphase II, sister chromatids align at the metaphase plate.
2. During meiosis II, sister chromatids separate and move to opposite poles.
3. Due to potential crossing over in meiosis I, sister chromatids may not be identical in meiosis II.
4. This variability contributes to genetic diversity in the resulting gametes.
Summary:
B: Homologous chromosomes do not line up in metaphase II; they already separated in meiosis I.
C: Crossing over occurs in meiosis I, not in meiosis II.
D: Homologous chromosomes start to separate in anaphase I, not metaphase II.
Which hormone initiates the changes in puberty?
- A. FSH
- B. ICSH
- C. testosterone
- D. GnRH
Correct Answer: D
Rationale: The correct answer is D: GnRH. Gonadotropin-releasing hormone (GnRH) is released from the hypothalamus, stimulating the pituitary gland to produce FSH and LH, which then trigger the changes of puberty. FSH and LH are not the initial hormones that start puberty, but rather the result of GnRH stimulation. Testosterone and ICSH are also involved in puberty but are not the primary hormone that initiates the process.