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development of CNS
Tufts d17 exam V
23
Anatomy
Professional
12/03/2013

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Term
placode
Definition
Placodes give rise to sensory neurons of cranial nerves
Term
What determines what neural crest cells become
Definition
A.where they derive from b.their migratory route co.their destination
Term
What facial tissue does not come from neural crest?
Definition
Tooth enamel
Term
What is diverge syndrome
Definition
Cleft palate. 1:4000 births
Term
Treachery Collins syndrome
Definition
Abnormal development of arch 1. Fetus face
Term
otic placode
Definition
All structures of the inner ear
Term
rostal part
Definition
Gives rise to brain
Term
caudal
Definition
Spinal cord
Term
Cavity
Definition
Ventricular system
Term
What regulates regionalization of neural tube
Definition
HOX genes
Term
Where do CNS neurons come from
Definition
neuropithelial cells in the neural tube
Term
What are the divisions of neuroepithelium
Definition
Ventricular zone, mantle, marginal zone
Term
What does the altar plate give rise to
Definition
Sensory association neurons
Term
What does the basal plate give rise to
Definition
Somatic motor nuclei
Term
What does the intermediolateral cell column give rise to
Definition
pre-ganglionic autonomic motor neurons
Term
What else has a alar and basal plate?
Definition
The myelencephalon
Term
Basal and altar plates are important for understanding
Definition
The pathways of cranial nerves through the brain.
Term
What its small grove that separates basil and alar platesz
Definition
sulcus limitans
Term
What arte two divisions of the prosencephalon
Definition
1. telencephlon will form hemispheres 2.the diencephalon will form optic, thalamic, and hypothalamic tissues.
Term
What do newly born neurons form?
Definition
A dense layer called the cortical plate
Term
Where do the first and last neurons go?
Definition
First born neurons go deep and last born occupy the superficial layer
Term
What roles does the growth cone play?
Definition
engine, construction site, and steering apparatus
Term
How do axons know where to go?
Definition
A road way of cell adhesion molecules and attractive neurotransmitters line the way. It is also repelled by signals outside the cell.
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