What statement indicates a woman has correct information about oogenesis?
"Women have all of their ova at the time they are born."
"Women make fewer ova as they age."
"Ova production begins at birth and continues until puberty."
"New ova are made every month from puberty to climacteric."
The Correct Answer is A
A. Women have all of their ova at birth. Oogenesis, the process of egg development, occurs in the fetus, and women are born with all the eggs (ova) they will ever have. The number of eggs decreases over time.
B. Women make fewer ova as they age is correct in a sense, but the statement is misleading because the number of eggs actually decreases after birth, not through an ongoing process of "making fewer."
C. Ova production begins at birth and continues until puberty is incorrect. Ova are formed during fetal development, but no new eggs are produced after birth.
D. New ova are made every month from puberty to climacteric is incorrect. While ova mature and are released monthly during a woman's reproductive years, they are not newly made each month. The ovary contains a finite number of immature eggs at birth.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. A decrease in saliva production may aggravate the disorder is incorrect. While excessive salivation (ptyalism) is a symptom of hyperemesis gravidarum, a decrease in saliva production is not the primary factor contributing to the disorder.
B. Decreasing gastric secretions lead to increased nausea is incorrect. While nausea and vomiting are key features of hyperemesis gravidarum, the decrease in gastric secretions does not directly cause it. The disorder is typically associated with an increase in hCG, dehydration, and electrolyte imbalances.
C. An increase in human chorionic gonadotropin (hCG) levels may contribute to this disorder is correct. Hyperemesis gravidarum is often linked to elevated levels of hCG, a hormone produced during pregnancy, which may lead to increased nausea and vomiting.
D. Symptoms begin and are most severe during the second trimester of pregnancy is incorrect. Hyperemesis gravidarum typically presents in the first trimester and may improve after that, although severe cases can last longer.
Correct Answer is A
Explanation
A. The umbilical cord typically contains two arteries that carry deoxygenated blood from the fetus to the placenta and one vein that carries oxygenated blood from the placenta to the fetus. This arrangement supports effective nutrient and gas exchange during fetal development.
B. Two veins are not found in the umbilical cord; only one vein is present.
C. While one artery and one vein might be seen in abnormal conditions like single umbilical artery (SUA), this is not typical.
D. Two veins and one artery is incorrect as the typical structure includes two arteries and one vein.
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