brain stem: cranial nerve nuclei Flashcards

1
Q
  • brain stem nuclei
  • reticular formation
  • longitudinal fiber tracts
  • chemically identified
A

functional organization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

fiber tracts are the same ones talked about in ascending/descending tracts of the spinal cord

A

longitudinal fiber tracts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

the special senses are added especially the auditory system and room must be made for them

A

medulla expands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

reticular formation expands from the center outward past the visceral somatic portions

A

adding reticular formation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly