Fetal Development Timeline Flashcards
1
Q
Week 3
A
- Beginning development of brain, spinal cord, and heart
- Beginning of development of GI tract
- Neural tube forms, which later becomes the spinal cord
2
Q
Week 5
A
- Stomach, pancreas, and liver begin to form
2. Heart now beats at a regular rhythm
3
Q
Week 6
A
- Fetal circulation established
- CNS forms
- Brain wave detectable
- Liver produces RBCs
4
Q
Week 7
A
- Arms and legs move
5
Q
Week 8
A
- Heart development complete
2. Resembles a human being
6
Q
Weeks 9-12
A
- Fetal heartbeat heard on Doppler at week 12
- Fetal gender can be determined by week 12
- Urine begins to be produced and excreted
7
Q
Weeks 13-16
A
- Bones become harder
- Quickening: fetus makes active movement, new moms may not be able to feel yet
- Fingernails and toenails present
- Amniotic fluid is swallowed
- Fine hair (lanugo) develops on head
- Weight quadruples
8
Q
Weeks 17-20
A
- Rapid brain growth
- Fetal heart tones can be heard with stethoscope
- Vernix (cheese) covers the fetus
- Head hair appears
- Brown fat deposited to help maintain temperature
- Nails present on fingers and toes
9
Q
Weeks 21-24
A
- Fetus has hand grasp and startle reflex
- Alveoli forming in the lungs
- Skin translucent and red
- Lungs begin to produce surfactant
10
Q
Weeks 25-28
A
- Eyelids open and close
- Nervous system controls some functions
- Fingerprints are set
- Fetus usually assumes head-down position
11
Q
Weeks 29-32
A
- Rapid increase in body fat
- Increased CNS control over body functions
- Lungs are not fully mature
12
Q
Weeks 33-38
A
- Testes are in scrotum of male
- Lanugo begins to disappear
- Increase in body fat
- Mother supplies fetus with antibodies
- Considered full term at 38 weeks
- Will not stop labor at 38 weeks because it’s considered full term
- Will not induce until 40 weeks unless mom or baby are at risk of complications
