Week5 Flashcards
migrate
the primitive cells, not yet identifiable as neurons or glia,
nerve growth factor (NGF)
promotes the survival and
growth of the axon
ischemia
the result of a blood
clot or other obstruction in an artery.
tPA
hemorrhage
the result of a ruptured artery.
denervation supersensitivity
related to dopamine synapses
helps compensate for decreased input.
side effect -causes chronic pain.
Increased sensitivity in remaining
synapses
Collateral
sprouting
axon un baska bir yerden baglanmasi
Where does collateral sprouting take place?
In the axon
DNA versus RNA
DNA(T)-Replicates and stores genetic material
RNA(U)-Brings to expression
Anencephaly(Anterior) A -A dan hatirla
Failure of the Anterior neural
tube opening to close
Spina bifida
Failure of the posterior neural
tube opening to close
survival chances are better than anencephaly
Proliferation
birth of new
primitive cells in the ventricles
Differentiation
primitive cells
become neurons or glia cells
can depent on the sensory input
Migration
- Immunoglobulins
- chemokins guide the migration of primitive cells
Which substances can prevent
apoptosis?
Neurotrophins, for example:
- NGF - Nerve Growth Factor
- BDNF - Brain Derived Neurotrophic Factor
First in, last out
the visual cortex is
myelinated earlier than the
prefrontal cortex
