Neurons Flashcards
1
Q
neuron
A
nerve cell
2
Q
dendrite
A
receive info and send it to the cell body (listeners)
3
Q
axon
A
passes messages along to other neurons
4
Q
myelin sheath
A
covers an axon, helps speed neural impulses
5
Q
action potential
A
impulse fired by neuron, a brief electrical charge that travels down the axon
6
Q
excitatory
A
positive signals
7
Q
inhibitory
A
negative (stop) signals
8
Q
threshold
A
minimum level of stimulation
9
Q
synapse
A
meeting point between neurons
10
Q
neurotransmitters
A
chemical messengers
11
Q
reuptake
A
when sending neuron reabsorbs the excess neurotransmitters
12
Q
axon terminal
A
end of neuron, forms junctions with other cells
13
Q
receptors
A
where neurotransmitters bind to on the receiving neuron
14
Q
synaptic gap
A
separation space between neurons
15
Q
nervous system
A
sends information throughout the body
