Chapter 4 Nervous and lymphatic system Flashcards
central nervous system composed of what
brain and spinal cord
neuron
one nerve cell
neuron parts
cell body, dendrites, axon
dendrites do what?
carry info to the cell body
axon do what?
carry information away from the cell body towards the terminal
nerve is a bundle of
axons
most nerves have mixed ____ and ____ function
motor sensory
spinal cord connects the ____ and _____
brain, peripheral nervous system
dura matter covers 4 things
brain, brain stem, spinal cord, spinal nerves
dura matter
thick outer most covering
arachnoid matter is what layer
middle layer
the subarachnoid space contains _____ _____
cerebrospinal fluid
Pia matter is what layer
innermost layer
Pia matter is in the _____ ______
subarachnoid space
anterior root originate form the
anterior aspect of the spinal cord
anterior root carry ______ ____ function only
outgoing motor
ganglion are located
outside the CNS
posterior roots carry _____ ______ information only
incoming sensory
posterior roots associated with this bundle of nerve cells
dorsal root ganglion
the anterior and posterior roots come together to form
spinal nerves