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HDD_Lecture_3
Brain development
19
Biology
Graduate
07/23/2014

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Cards

Term
How many neurons are in human brain?
Definition
86*10^9 = 100*10^9=10^11
Term
Where is the most neurons are situated?
Definition
80% in cerebellum = 10% of total mass
Term
Where placenta comes from?
Definition
Trophoblast
Term
What layers contain inner cell mass?
Definition
Epiblast and hypoblast
Term
Which germ layer nervous system comes from?
Definition
Ectoderm
Term
Outline the process of embrional brain development before neurogenesis
Definition
1) Ectoderm thickens to produce neural groove
2) Neural tube is formed from neural ridges
3) Fill with cerebral fluid
4) Prosencephalon = forebrain=teleencephalon+diencephalon,mesencephalon=midbrain,rhombencephalon = hindbrain
Term
Where forebrain will developed to?
Definition
Cerebral cortex
Term
Where midbrain will developed to?
Definition
Relay station
Term
Where hindbrain will developed to?
Definition
Basic physical processes
Term
When cerebral cortex is formed?
Definition
Between weeks 8 and 26
Term
When formation of gyri and sulci happening?
Definition
Weeks 28 – 40
Term
What is the name of technology to visualise the brain?
Definition
Clarity. It uses polyacril amid gel followed by SDS
Term
Outline the main stages of brain development
Definition
•Neural induction
•Regional patterning
•Neuronal stem cell proliferation
•Neuronal migration
•Determination and differentiation
•Axon growth and guidance
•Axon targeting
•Synapse formation
•Refinement of synapse
•Myelination and maturation
Term
When synaptogenesis ends?
Definition
In adulthood
Term
When myenilization ends?
Definition
In adolescence
Term
How brain weight is dependent from body size?
Definition
Linear
Term
Is linear dependency of brain weight from body size is true for human?
Definition
No
Term
[image]
Definition
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Term
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Definition
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