The Spine Flashcards
How many pairs of spinal nerves are there
31
Where do afferent and efferent split
The dorsal and ventral roots as they enter the vertebra
Where does the Spinal cord send neurons
Different pairs of spinal nerves send neurone to different parts of the body
What is grey matter
Cell bodies of neurons
What is white matter
Axons
What leaves the vental root
Motor nerves leave the spinal cord this way
What enters the dorsal root
Where Sensory nerves enter the spinal cord
What are dermatones
Segments of the spinal cord and where they send neurons
What are the 2 different types of cells that split in the dorsal and ventral roots to get to the vertebrae
Afferent and efferent cells
What are afferent cells
Cells that move towards NS’s to send signals
What are efferent cells
Cells that move away from NS’s to send signal back to muscles etc.
What “matter” do cell bodies of neurons make up
Grey matter
What “matter” do axons populate
White matter
What gives white matter it’s colour
The myelinated axons give it the white colour
Where do motor neurons leave the spinal cord
The vental root
