Spinal Chord cross sections Flashcards
1
Q
what is the outer section of the spinal chord formed of?
A
white matter consisting of axons that form the ascending and descending pathways
2
Q
ascending pathways =
A
travel from the Body to the brain - carrying sensory information
3
Q
descending pathways =
A
track from the brain to the body - carrying motor instructions
4
Q
what is the inner section of the spinal chord formed of?
A
grey matter
5
Q
where do nerves from the body enter?
A
through dorsal roots (dorsal horn)
6
Q
where do nerves exit the spinal chord?
A
through the ventral root (ventral horn)
7
Q
what is a useful landmark for the anterior surface of the spinal chord?
A
a deep groove called the ventral median fissure
8
Q
what are the two main divisions of the PNS?
A
autonomic and somatic
