FETAL PERIOD

1
FETAL PERIOD

• FETAL PERIOD IS FROM 8 WEEKS AFTER CONCEPTION
  UNTIL BIRTH
• ORGANISM IS NOW A FETUS
• SUBSTANTIAL INCREASE IN FETAL SIZE
• STRUCTURES FORMED IN EMBRYONIC PERIOD GROW AND
  BEGIN TO FUNCTION

2
FETAL PERIOD

• 3 MONTHS
• 1 OUNCE AND 3 INCHES LONG
• FEATURES ARE DISTINGUIHABLE
• GENITALS CAN BE IDENTIFIED AS MALE OR FEMALE
• FETUS CAN MOVE
• HEART AUDIBLE
• SWALLOWS
• 4 MONTHS
• 51/2 INCHES LONG AND 4 OUNCES
• FETAL MOVEMENT FELT BY MOTHER (QUICKENING)
• VERNIX- CHEESY MATERIAL PROTECTING SKIN
• LANUGO - DOWNY HAIR

3
FETAL PERIOD

• 5 MONTHS
• 10 - 12 INCHES LONG 1/2 TO 1 POUND
• TOENAILS AND FINGERNAILS
• HAIR ON HEAD, EYELASHES, EYEBROWS
• EYES FUSED SHUT
• 6 MONTHS
• 14 INCHES LONG 1 TO 11/2 POUNDS
• EYES AND EYELIDS FORMED EYELIDS OPEN
• 7 MONTHS
• 14 -17 INCHES LONG 21/2 TO 3 POUNDS
• LUNGS PRODUCE SURFACTANTS

4
FETAL PERIOD

• 8TH AND 9TH MONTHS
• MORE FAT DEPOSITS
• GAINS ANOTHER 4 POUNDS
• AT BIRTH, AVERAGE BABY IS 20 INCHES LONG AND
  WEIGHS 7 TO 71/2 POUNDS