brain stem: cranial nerve nuclei Flashcards
1
Q
- brain stem nuclei
- reticular formation
- longitudinal fiber tracts
- chemically identified
A
functional organization
2
Q
fiber tracts are the same ones talked about in ascending/descending tracts of the spinal cord
A
longitudinal fiber tracts
3
Q
- start with the development of the spinal cord and move rostral
- the dorsal portion of the neural tube starts to thin and eventually splits
- the side starts to move apart
A
developmental sequence
4
Q
the special senses are added especially the auditory system and room must be made for them
A
medulla expands
5
Q
there is an expansion of all the tracts entering the brain, so the white matter expands to accommodate the tracts
A
adding white matter tracts
6
Q
reticular formation expands from the center outward past the visceral somatic portions
A
adding reticular formation
7
Q
- nuclei or cell bodies of the cranial nerves
- everything comes into the brain stem or leaves the brain stem through these nuclei
- the nuclei of the brain stem are situated in the same functional columns that we saw in the spinal cord
- visceral and somatic information is also separate
A
brain stem nuclei