Neurodevelopment
What day does the neural plate appear in?
Day 19
Associated with a dimple, birthmark or hair path.
nothing herniates here
Spina Bifida Occulta
KEYHOLE IRIS
CONGENITAL DEFECT
YOUR FAVORITE PERSON HAS IT
Colobommaaaaaaaa
Baby has a pale/grayish appearance. What will be the correct measure on an Apgar scale?
1
what division does the 4th ventricle come from?
Metencephalon
What is the most severe type of Spina bifida? The spinal cord segment is covered by a thin membrane only
Myelocele (Myeloschisis)
Failure of the brain to divide into R and L hemisphere
Holoprosencephaly
Alar plate and basal plate are separated by _____
Sulcus militans
Describe glial-mediated migration
glial cells create a scaffold structure, neurons worm up and down this scaffolding.
Protrusion of meninges and spinal cord due to a syrinx
Syringomyelocele
what is the cause of Dandy walker syndrome?
Enlargement of the 4th ventricle with partial or complete absence of cerebellar vermis
What disorder results from the lack of closure of anterior neuropore (Telencephalon does not fully close)?
Anencephaly
Notochord has two important roles. What are they?
1. produce SHH proteins
2. form the Nucleus Pulpous
Name the disorder:
Dura and arachnoid protrude but Pia does not.
Meningocele
Cause of Lissencephaly
absence of gyro due to defective neuronal migration
What is the Pneumotaxic center?
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Which neural tube layer will be the one producing CSF later on?
Neuroepithelial layer
What is congenital dermal sinus?
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Which type of Arnold-Chiari malformation includes the extension of cerebellum, brainstem, 4th ventricle and meninges.
Type III - most serious