This is a slideshare presentation of ED1: Child and Adolescent Development that talks about the fetal development from 0-38 weeks.

1. FETAL
DEVELOPMENT
ALLAN LLOYD M. MARTINEZ
ERAP A. PAAYAS

2. WEEK 0-8
NERVOUS SYSTEM:
Neutral plate forms & will develop into nervous
system (WEEK 3)
Brain forms and the rapid growth begins (WEEK 4)

3. WEEK 0-8
EYES, EARS & MOUTH:
Basic features of face such as eyes, ears and mouth
begin to form (WEEK 4)
Eyes have retina and lens (WEEK 5)
Teeth begin to form (WEEK 6)
Forehead and lenses of the eyes begin to form
(WEEK 7)

4. WEEK 0-8
HEART & CIRCULATORY SYSTEM:
Development of an embryo begins (WEEKS 1 and 2)
A tiny yolk sac supplies the embryo with nourishment from
the mother (WEEK 2)
The embryo begins to grow and develop (WEEKS 4 and 5)
The heart begins to beat (WEEK 4)
Liver starts to produce blood cells (WEEK 5)
Heart has almost completely formed (WEEK 8)

5. WEEK 0-8
LIMBS:
Hands begin to develop; nerves grow into limb buds
(WEEK 5)
Other parts include elbows, fingers, feet and toes begin
to develop and form (WEEKS 6-7)
Separation of fingers and toes happen (WEEK 8)

6. WEEK 0-8
RESPIRATORY SYSTEM:
Bronchial tubes start to form in the lungs (WEEK 4)

7. WEEK 0-8
DIGESTIVE SYSTEM:
A tube develops which will become intestines, liver,
pancreas and bladder (WEEK 3)
 Stomach also develops (WEEK 4)
Rapid growth of the liver begins (WEEK 5)

8. WEEK 0-8
SKELETAL & MUSCULAR SYSTEM:
Cartilages, joints and bones begin to form and
straighten; muscles for skeletal system also begin to
form (WEEKS 6 and 7)

9. WEEK 0-8
URINARY & GENITAL SYSTEMS:
Permanent kidneys begin to form (WEEK 5)
Testes and ovaries are distinguishable (WEEK 8)

10. WEEK 9-38
NERVOUS SYSTEM:
Basic divisions of the brain are complete (WEEK 10)
Spinal column forms (WEEK 23)
Brain’s neurons are formed; its activity for visual and
auditory systems begins (WEEK 24)
Fetus is sensitive to its 5 senses (WEEK 27)
Hearing is at fully developed stage (WEEK 35)
Increased central nervous systems control over body
functions (WEEK 36)

11. WEEK 9-38
EYES, EARS & MOUTH:
 Lenses of the eye begins to form; palate begins to fuse (WEEK 9)
 Vocal cords form (WEEK 11)
 Completion of palate fusion happens (WEEK 12)
 Eyes & ears are almost in their final positions (WEEK 14)
 Eyelids are formed and fused shut (WEEK 20)
 Middle ear bones begin to harden (WEEK 21)
 Fetus can open its eyes (WEEK 26)
 Baby begins to blink and can determine light and dark (WEEK 34)
 Hair grows to the baby (WEEK 37)

12. WEEK 9-38
HEART & CIRCULATORY SYSTEM:
Placenta functions completely (WEEK 9)
Heart begins to pump blood (WEEK 15)
Heart is fully developed (WEEK 38)

13. WEEK 9-38
LIMBS:
Hands can be functional (WEEK 12)
Fetus begin to store fats (WEEK 15)
Pads form on fingertips & toes (WEEK 16)
Fingernails are formed completely (WEEK 32)

14. WEEK 9-38
DIGESTIVE SYSTEM:
Insulin is secreted from the pancreas (WEEK 10)
Intestines have moved from umbilical cord to
stomach (WEEK 11)
Bile is secreted from the liver (WEEK 12)
Liver begins to produce waste products (WEEK 35)

15. RESPIRATORY SYSTEM:
Breathing movement from the lungs begins (WEEK
9)
Air sacs in the lungs develop and has good blood
flow (WEEK 24)
Lungs are developed completely (WEEK 35)
WEEK 9-38

16. WEEK 9-38
SKELETAL & MUSCULAR SYSTEMS:
Increase of connections between nerves & muscles
(WEEK 10)
Red blood cells are produced by the bone marrow
(WEEK 28)
Hardening of bones happened; skull is still pliable
and not completely joined (WEEK 33)

17. WEEK 9-38
URINARY & GENITAL SYSTEMS:
Kidneys are functioning (WEEK 9)
Genitalia are now fully developed within the baby’s
body; a penis or clitoris will begin to form externally
(WEEK 13)
Baby is starting to form urine (WEEK 13)
Development of uterus happens (WEEK 20)
Testes begin to descend to scrotum (WEEK 28)
Kidneys are fully developed (WEEK 35)