Lec 9 Internal Organization of the Brainstem and Spinal Cord Flashcards
1
Q
Which 4
nerves have nuclei within the GSE cell column?
A
- oculomotor [III]
- trochlear [IV]
- abducens [VI]
- hypoglossal [XII]
2
Q
What do the fibers of the trigeminal motor nucleus innervate [Vm]?
A
muscles of mastication and tensor tympani
3
Q
What do fibers of the facial motor nucleus innervate?
A
- muscles of facial expression
- stapedius
4
Q
What 3 CNs have fibers in the nucleus ambiguous
A
IX, X, and XI
5
Q
What CN is assocaited with Edinger-wetphal nucleus?
A
- CN III
- innervates ciliary muscle and pupillary sphincter
6
Q
Which two CNs are assocaited with the salivatory nuclie?
A
VII [superior]
IX [inferior]
7
Q
What does the corticobulbar tract do?
A
- gives bilateral input to Vm, VIIm upper face motor neurons, nucleus ambiguous and XII
- gives contralateral input to IX and VIIm lower face motor neurons
8
Q
What is function of SVA cell column?
A
taste [VII, IX, X]
9
Q
What is function of GVA cell column?
A
- cardiorespiratory and digestive
10
Q
What is blood supply to floor of the 4th ventricle?
A
posterior circulation
