Fetal Development by Months

Question 1

First Month of Fetal Development

Answer 1

L: 0.75-1cm
G: 400 mg
spinal cord fused and at midpoint

Question 2

Second Month of Fetal Development

Answer 2

L: 2.5 cm
G: 20 g
completed organogenisis
heart w/ septum beats rhythmically
extremities developed

Question 3

Third Month of Fetal Development

Answer 3

L: 7-8 cm
G: 45 g
formation if bone ossification centers
kidney secretion starts
heartbeat audible by doppler

Question 4

Fourth Month of Fetal Development

Answer 4

L: 10-17 cm
G: 50-120 g
fetal heart audible by stethoscope
fetus swallows amniotic fluid
urine present in amniotic fluid
sex determined by ultrasound

Question 5

Fifth Month of Fetal Development

Answer 5

L: 25 cm
G: 223 g
hair and eyebrows formed
vernix caseosa forms
meconium present in upper intestine

Question 6

Sixth Month of Fetal Development

Answer 6

L: 28-36
G: 550 g
eyelids open
pupils reactive to light
capable of hearing sounds

Question 7

Seventh Month of Fetal Development

Answer 7

L: 35-38 cm
G: 1200 g
testes begins to descend
alveoli matures

Question 8

Eighth Month of Fetal Development

Answer 8

L: 38-43 cm
G: 1,600 g
fetus responds to external voice
fetus assumes birth position
deposition of brown fat

Question 9

Ninth month of fetal development

Answer 9

L: 43-48 cm
G: 1,800-2,700 g
calcium deposition
body stores glycogen, iron and carbohydrates
presence of 1-2 creases on sole of foot

Question 10

Tenth month of fetal development

Answer 10

L: 48-52 cm
G: 3000 g
fetus kicks actively
vernix caseosa fully formed
sole creases cover 2/3 of feet

Question 11

At what nonth does the spinal cord fuse and is at midpoint?

Answer 11

First month

Question 12

At what month does organogenisis complete?

Answer 12

Second

Question 13

At what month are the external genitalia present?

Answer 13

Second

Question 14

At what month are nailbeds and tooth buds formed?

Answer 14

Third

Question 15

At what month does kidney secretion start?

Answer 15

Third

Question 16

At what month is the fetal heart audible by stethoscope?

Answer 16

Fourth

Question 17

At what month is the sex of the fetus determinable?

Answer 17

Fourth

Question 18

At what month does the vernix caseosa form?

Answer 18

Fifth

Question 19

At what month do the hair and eyebrows form?

Answer 19

Fifth

Question 20

At what month are the pupils reactive to light?

Answer 20

Sixth

Question 21

At what month do the eyelids open?

Answer 21

Sixth

Question 22

At what month is the fetus capable of hearing sounds?

Answer 22

Sixth

Question 23

At what month do the testes descend?

Answer 23

Seventh

Question 24

At what month does the alveoli mature?

Answer 24

Seventh

Question 25

At what month does the fetus respond to external voice?

Answer 25

Eighth

Question 26

At what month do iron stores develop?

Answer 26

Eighth

Question 27

At what month does deposition of brown fat occur?

Answer 27

Eighth

Question 28

At what month does calcium deposition occur?

Answer 28

Ninth

Question 29

At what month does the body store glycogen, iron, and carbohydrates?

Answer 29

Ninth

Question 30

At what month does the fetus kick actively?

Answer 30

Tenth

Question 31

At what month does the vernix caseosa fully form?

Answer 31

Tenth