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developmental timeline
Name the gestational period or age when these things happen.
42
Anatomy
Graduate
02/22/2012

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Cards

Term
blood circulation begins
Definition
3 weeks
Term
neural tube formed
Definition
3 weeks
Term
1st appearance of pulmonary structures
Definition
4 weeks
Term
motor fibers begin to appear in the spinal cord to form spinal nerves, followed by dorsal nerve roots consisting of sensory fibers
Definition
4 weeks
Term
neural tube complete
Definition
end of 4th week
Term
right and left heart chambers formed
Definition
5 weeks
Term
skeleton is formed by mesenchymal model
Definition
5 weeks
Term
when do cranial nerves emerge
Definition
5-6 weeks
Term
skeleton is made of cartilage model
Definition
6 weeks
Term
connection between sensory and motor occur
Definition
6-7 weeks
Term
ossification centers formed in cartilage model of skeleton
Definition
7-8 weeks
Term
4 heart chambers
Definition
7 weeks
Term
active movement from motor units
Definition
8-12 weeks
Term
dying back of extra neurons leads to mononeural innervation of motor units
Definition
16-25 weeks
Term
production of surfactant begins
Definition
24 weeks
Term
fetus can hear
Definition
24 weeks
Term
pain receptors present
Definition
20 weeks
Term
15% of fetal mass is due to muscle
Definition
20 weeks
Term
pathways to carry pain are present
Definition
24-37 weeks
Term
olfactory discrimination
Definition
29 weeks
Term
25% of fetal mass is due to muscle
Definition
birth
Term
myelination of PNS complete
Definition
birth
Term
vestibular sense complete
Definition
birth, but continues to develop
Term
diaphyses of long bones are ossified
Definition
birth
Term
maturation of sensory pathways
Definition
after birth
Term
auditory system completely myelinated
Definition
1 month
Term
control of sleep/awake and social behavior CNS organization occurs
Definition
1st 2 months
Term
smooth tracking abilities begin
Definition
2 months
Term
consistent head turning to localize sound
Definition
3 months
Term
color vision emerges
Definition
4 months
Term
vestibular sensitivity increases
Definition
6-12 months
Term
myelination starts to slow down
Definition
2 years
Term
2 point discrimination
Definition
4 years
Term
laterality/conscious awareness of 2 sides of our body
Definition
5 years
Term
can tell what you're touching without seeing it
Definition
5 years
Term
accurately visually track a moving object like a baseball
Definition
5-10 years
Term
new alveoli continue to develop until this age range
Definition
8-10 years
Term
perceptual judgments mature
Definition
11 years
Term
directionality develops
Definition
6-12 years
Term
depth perception fully mature
Definition
12 years
Term
awareness of vibrations begin to change
Definition
50 years
Term
functional losses of the cardiovascular system become evident
Definition
70's
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