6.3 Sexual Reproduction, Pregnancy, and Fetal Development Part 4

Question 1

When do unique fingerprints develop in the fetus?

Answer 1

second trimester

Question 2

When does the mother generally feel fetal movement?

Answer 2

18-21 weeks

Question 3

What is lanugo?

Answer 3

fetal hair

Question 4

When does lanugo form?

Answer 4

second trimester

Question 5

What is the purpose of lanugo?

Answer 5

keep fetus warm

Question 6

When does the fetus develop week/sleep cycles?

Answer 6

second trimester

Question 7

When does the fetus develop a regular heart beat pattern?

Answer 7

second trimester

Question 8

What is the third trimester characterized by?

Answer 8

continued development of systems already in place

Question 9

When do testes descend into the scrotum during fetal development?

Answer 9

third trimester

Question 10

When do sucking relfexes develop?

Answer 10

week 32

Question 11

What are the two important milestones in the third trimester?

Answer 11

lung maturation
temperature self regulation

Question 12

How big is a baby typically by the end of pregnancy?

Answer 12

19-22 inches
6-10 lbs

Question 13

What are the three stages of labor and delivery?

Answer 13

dilation of the cervix
delivery of the baby
delivery of the placenta

Question 14

What occurs during dilation of the cervix?

Answer 14

uterus contracts which pushes the babies head against the cervix leading to dilation

Question 15

What stage of labor and delivery is the longest?

Answer 15

first stage

Question 16

What stimulates contractions of the uterus?

Answer 16

oxytocin

Question 17

What releases oxytocin?

Answer 17

posterior pituitary

Question 18

How long is the second stage of labor and delivery?

Answer 18

aprroximately 50 minutes

Question 19

How long is the first stage of labor and delivery?

Answer 19

approx 6-10 hours

Question 20

What position are babies typically born in?

Answer 20

head first