Fetal Development Flashcards
(49 cards)
1
Q
Organogenesis
A
Wk 8
2
Q
Double chamber hearts visible
A
Wk 5
3
Q
Heart begins to beat
A
Wk 2/ wk 3
4
Q
Gender recognizable
A
Wk 12
5
Q
Heart beating
A
Wk 5
7
Q
Brain and spinal cord
A
Wk 2/ wk 3
8
Q
Limb buds form
A
Wk 5
9
Q
Eyelids begins to fuse
A
Wk 8
10
Q
Face is well formed
A
Wk 12
11
Q
Circulatory system through umbilical cord well established
A
Wk 8
12
Q
Kidneys begin to form urine
A
Wk 12
13
Q
Labia majora well developed
A
Wk 40
14
Q
Blood circulation begins
A
Wk 2/ wk 3
15
Q
Lung buds appear
A
Wk 2/ wk 3
15
Q
Spontaneous movements occur
A
Wk 12
17
Q
Lungs developed sufficiently to provide gas exchange
A
Wk 28
18
Q
L/S ratio greater than 2:1
A
Wk 36
19
Q
Limbs strong and slender
A
Wk 12
20
Q
Testes in the scrotum
A
Wk 40
21
Q
Lanugo hair begins to dvelop
A
Wk 16
23
Q
Nails present
A
Wk 20
24
Q
Fingernails extend beyond fingertips
A
Wk 40
25
Q
Enamel and denting depositioning
A
Wk 20
26
Q
Muscles dvelop
A
Wk 20
27
Skeletal ossification
Wk 16
28
Vernix caseosa decreases
Wk 40
29
Heartbeat by doppler
Wk 12
| 10 to 12
30
Skin reddish and wrinkled
Wk 24
31
Reflex hand grasp
Wk 24
32
Fetal skin transparent
Wk 16
34
Heartbeat by fetoscope
Wk 20
35
Fetus has ability to hear
Wk 24
35
Lecithin formation
Wk 28
36
Limbs well flexed
Wk 28
36
If born baby can breathe
Wk 28
37
Hair on head well formed
Wk 24
37
Bones fully developed
Wk 32
39
Skin is pink and body rounded
Wk 36
40
Lanugo covers entire body
Wk 20
41
L/S ratio 1.2/1
Wk 32
42
Skin less wrinkled
Wk 36
44
Lanugo in upper arms and shoulders
Wk 40
45
Active movements present
Wk 16
46
Eyelids open and close
Wk 28
46
Subcutaneous fat present
Wk 32
46
Lanugo disappearing
Wk 36
47
Brain developing rapidly
Wk 28
48
Sole (plantar) creases run down to the heel
Wk 40
49
Blastocyst free floating
Wk 1
