Fetal Development

Question 1

• Foundation of nervous and genitourinary systems.
• Skin, bones, and lungs
• Buds of arms and legs start to form.
• Rudiments of eyes, ears, and nose appears.
• Fetal length: 0.75-1 cm
• Weight: 400 mg

Answer 1

End of 1st month

Question 2

• The neural tube (brain, spinal cord, and other neural tissue in the CNS) is well formed.
• Digestive tract and sensory organs begin to develop.
• Sex differentiation begins.
• Fetal length: 2.5 cm
• Weight: 20 g

Answer 2

4-6 weeks (almost 2 months)

Question 3

• Sex differentiation is completed.
• Reproductive organs and genitalia are fully developed.
• Fetal heart beat can be DETECTED.
• Nervous system START TO FUNCTION.
• Fetal length: 10-17 cm
• Weight: 55-120 g

Answer 3

16 weeks (4th month)

Question 4

• LANUGO covers the entire body.
• Quickening occurs (movement ni baby)
• Heart sound can be AUSCULTATED.
• Baby can hear sounds.
• Move often.
• Fetal length: 25 cm
• Weight: 223 g

Answer 4

20 weeks (5 months)

Question 5

• Vernix caseosa appears.
• Eyebrows and fingernails develop.
• Finger and toeprints are visible.
  Respond to sounds by moving or increasing pulse.
• Fetal length: 25-28 cm
• Weight: 550 g

Answer 5

24 weeks (6 months)

Question 6

• Fetal survival in extrauterine life is good.
• Fully developed hearing.
• Changes in position frequently.
• Responds to stimuli, including sound, pain, and light.
• Fetal length: 28-36 cm
• Weight: 1200 g

Answer 6

28 Weeks (7 months)

Question 7

• Continues to mature and develop reserves body fat.
• Brain development rapidly at this time.
• Most internal systems are well-developed, but lungs may still be immature.
• Fetal length: 38-43 cm
• Weight: 1600 g

Answer 7

32 weeks (8 months)

Question 8

• Lungs are nearly fully developed.
• Reflexes are coordinated.
• Can blink, close the eyes, turn the head, and grasp firmly.
• Fetal length: 42-48cm
• Weight: 1,800-2700g (5-6 lbs.)

Answer 8

36 weeks (9 months)