Milestones in brain development (embryology) Flashcards
1
Q
Two systems in the body
A
- ) Conscious system
2. ) Autonomic system
2
Q
Autonomic system: two parts
A
- )
2. )
3
Q
Primitive streak
A
Forms the spinal cord and brain
4
Q
How much energy does the brain generate?
A
23 watts (joules/second)
5
Q
How much does the neo-cortex and language centres take up of the brain
A
76%
6
Q
Normal developments: reflexes
A
- ) Rooting reflex
- ) Sucking reflex
- ) Moro reflex
- ) Grasping reflex
- ) Stepping reflex
- ) Babinski reflex
- ) Tonic-neck reflex
7
Q
Vision and hearing
A
- Best see objects 7-9 inches from eyes
- Lack peripheral vision
- Able to track movement within one day of birth
- Convergence doesn’t occur until 7/8 weeks
- Cones less developed than rods at birth
8
Q
Smell and taste
A
- smell well developed at birth
- demonstrate facial expressions to different colours
9
Q
Developmental progress
A
- Cranial to caudal
- Proximal to distal
- Simple to complex
- Ambidextrous until 3 years old
10
Q
Lissencephaly
A
- Smooth brain/neuronal migration disorder
