17.1 - Developmental anomalies of the CNS Flashcards
1
Q
the wall of the neural tube forms the ______ (CNS / PNS); the hollow lumen forms the __________ and _________, and the neural crest forms the __________ (CNS / PNS)
A
- CNS
- ventricles and spinal cord canal
- PNS
2
Q
neural tube defects are detected during prenatal care be elevated ______
A
AFP
3
Q
anencephaly results in _____________ in utero
A
polyhydramnios
4
Q
dandy walker malformation is a congenital failure of the _____________ to develop
A
cerebellar vermis
5
Q
how does dandy walker malformation present?
A
- massively dilated 4th ventricle
- absent cerebellum
- hydrocephalus
6
Q
arnold chiari malformation is a downward displacement of the _____________ and __________ through the ____________
A
- cerebellar vermis
- cerebellar tonsils
- foramen magnum
7
Q
arnold chiari malformation is often associated with _____________
A
meningomyelocele
