Neuron Flashcards
1
Q
neuron
A
nerve cell
2
Q
cell body
A
contains the nucleus
3
Q
dendrites
A
branching projections of the cell body
4
Q
axon
A
the tail of the neuron
5
Q
myelin
A
the white fatty substance that covers some axons
6
Q
Myelin
A
1.Produced by the Schwann Cells
2.Nerves covered with myelin are called white matter
3. Nerves without myelin are called gray matter
7
Q
terminal end fibers
A
short branches on the end of an axon
8
Q
synapse
A
the space between neurons
9
Q
neurotransmitter
A
chemical that allows the message to jump synapse
10
Q
sensory neurons
A
in ascending tracts that carry the message from the senses to the brain
11
Q
motor neurons
A
in descending tracts that carry the message from the brain to the extremities
