Lanugo __________.
A) permits food and oxygen to reach the organism
B) provides the fetus a cushion against jolts caused by the mothers movements
C) helps regulate the fetuss body temperature
D) helps the vernix stick to the skin
Question 2During the second trimester, a white, cheeselike substance called __________ emerges on the skin.
A) lanugo
B) corpus luteum
C) vernix
D) chorion
Question 3Katie wonders when she will first be able to hear her fetuss heartbeat through a stethoscope. You tell her that this should happen by the __________.
A) fourth week of pregnancy
B) third month of pregnancy
C) end of the second trimester
D) beginning of the third trimester
Question 4By the twelfth week of pregnancy, __________.
A) the sex of the fetus can be detected with ultrasound
B) the mother can feel the movements of the fetus
C) the fetus is viable and can survive if born early
D) synchrony between fetal heart rate and motor activity peaks
Question 5During the second month of pregnancy, __________.
A) the umbilical cord first appears as a primitive body stalk
B) touch sensitivity extends to most of the body
C) the heart develops separate chambers
D) the heartbeat can be heard through a stethoscope
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