48.1 Neuron Structure and Function Flashcards
1
Q
Cell body
A
most of a neuron’s organelles + its nucleus are located her
2
Q
dendrites
A
highly branched extensions that receive signals from other neurons
3
Q
axon
A
an extension that transmits signals to other cells
4
Q
axon hillock
A
cone-shaped part whee axon joins the cell body
-typically generate the signals that travel down the axon
5
Q
synapse
A
junction btwn neurons where information is transmitted
6
Q
synaptic terminal
A
each part of each axon that forms a synapse
7
Q
neurotransmitters
A
chemical messengers that pass information from the transmitting neuron to the receiving cell
8
Q
presynaptic cell
A
the transmitting neuron
9
Q
post synaptic cell
A
receives the signal
10
Q
glia
AKA Glial cells
A
supporting cells that nourish neurons
- insulate axons of neurons
- regulate extracellular fluid
