Maternal Newborn Fetal Development

Question 1

Fetal Period begins

Answer 1

9 weeks after conception

Question 2

Weeks 2-3

Answer 2

Lung buds
Blood circulates
Heart begins to beat
Brain and spinal cord

Question 3

Week 5

Answer 3

Double heart chambers
Heart beating
Limb buds form

Question 4

Week 8

Answer 4

Every organ is present, umbilical cord circulation is established

Question 5

Week 12

Answer 5

Kidneys form urine, heartbeat is detected

Question 6

Week 16

Answer 6

Active movements are present, lanugo develops, sex is recognizable

Question 7

Week 20

Answer 7

16-18 cm, fetus has nails, muscles are developed

Question 8

Week 24

Answer 8

23cm, hair is formed, infant can hear, vernix Caseosa,

Question 9

28 week

Answer 9

27 cm length, brain developing rapidly, if born- neonates can breath

Question 10

Week 32

Answer 10

31 cm, bones are fully developed, subcutaneous fat developed, L/S ratio 1.2:1

Question 11

Week 36

Answer 11

35 cm, L/S Ratio 2:1, lanugo disappearing

Question 12

Week 40

Answer 12

49 cm, lanugo and vernix caseoasa may be present in small amounts, fingernails extend beyond fingertips