Nokea
What are the number and type of chromosomes in a normal mature gamete?
- A. 22 autosomes
- B. 22 autosomes and one sex chromosome
- C. 46 chromosomes
- D. 23 autosomes
Correct Answer: B
Rationale: Gametes have 22 autosomes and one sex chromosome, resulting in 23 chromosomes in total.
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Match each term with its description. Zygote
- A. None
- B. None
- C. Part of the blastocyst that will develop into the embryo.
- D. None
Correct Answer: C
Rationale: Zygote develops into the embryo.
The most critical time of development during pregnancy is during organogenesis, where teratogens can cause congenital abnormalities. When is this time period?
- A. At the time of fertilization
- B. During the zygote period
- C. During the embryonic period
- D. At 20 weeks gestation
Correct Answer: C
Rationale: Organogenesis occurs during the embryonic period, where teratogens have the highest impact.
Fetal circulation includes 3 shunts. Match each shunt to its physiologic action. Foramen ovale
- A. Connects the pulmonary artery and the aorta, bypassing the lungs.
- B. Connects the right and left atria.
- C. Connects the right and left ventricles.
- D. Allows the umbilical vein to bypass the liver to flow into the inferior vena cava.
Correct Answer: B
Rationale: Foramen ovale connects the right and left atria.
What is the portion of the endometrium beneath the blastocyst known as?
- A. Decidua basalis
- B. Chorionic villi
- C. Decidua vera
- D. Decidua capsularis
Correct Answer: A
Rationale: The decidua basalis is the portion of the endometrium beneath the blastocyst.
The nurse is counseling a female patient diagnosed with anovulation as a cause of infertility. Which information does the nurse provide to the patient? Select all that apply.
- A. Methods for dietary planning
- B. Consultation for myomectomy
- C. Refrain from unprotected sex
- D. Surgical correction of fallopian tubes
Correct Answer: A
Rationale: Methods for dietary planning and clomiphene citrate instructions are crucial for managing anovulation. The other options are unrelated or less effective for this condition.