biology Flashcards
1
Q
What is an axon?
A
“tail” of the neuron connected to the cell body (soma)
2
Q
what covers the axon
A
myelin sheath
(w/schwann cell inside) (node of ranvier sep. sheaths)
3
Q
Can the cell body of a neuron divide?
A
NO
4
Q
What is an “afferent” neuron?
A
RECEIVES initial signal from the brain!
Afferent = receive!
5
Q
What is an “efferent” neuron?
A
stimulates target cells (effectors) to elicit a response
6
Q
what type is a motor neuron?
A
afferent neuron
7
Q
what type is a association neuron
A
interneuron (middle — from sensory to motor)
8
Q
what type is a motor neuron?
A
efferent neuron (exit)
ON SKELETAL MUSCLE To MOVE!!! (motor)
9
Q
What are dendrites?
A
receive info to transfer to the cell body
(“hair of the neuron”)
