Chapter 3 - Major External Features Of A Neuron Flashcards
1
Q
Synapses
A
The gaps between adjacent neurons across which chemical signals are transmitted.
2
Q
Myelin
A
The fatty insulation around many axons.
3
Q
Cell Body (Soma)
A
The metabolic center of the neuron; also called the soma.
4
Q
Cell Membrane
A
The semipermeable membrane that encloses the neuron.
5
Q
Dendrites
A
The short processes emanating from the cell body, which receive most of the synaptic contacts from other neurons.
6
Q
Axon Hillock
A
The cone-shaped region at the junction between the axon and the cell body.
7
Q
Axon
A
The long, narrow process that projects from the cell body.
8
Q
Nodes of Ranvier (pronounced “RAHN-vee-yay”)
A
The gaps between sections of myelin.
9
Q
Buttons
A
The button like endings of the axon branches, which released chemicals into synapses.
