Quiz 4

Question 1

Nervous System

Answer 1

Sensory is going into the brain and motor is going out

Question 2

Afferent

Answer 2

Sensory

Question 3

Efferent

Answer 3

Motor

Question 4

What is the most important cell in the nervous system?

Answer 4

The neuron

Question 5

Where does the signal come through?

Answer 5

The Dendrites

Question 6

What is Axon Hillock?

Answer 6

Where the action potential is generated

Question 7

What does the axon attach to?

Answer 7

The muscle

Question 8

How do we communicate?

Answer 8

Electrically through the spinal cord and chemically through the brain

Question 9

What does Mylein insulate?

Answer 9

The Axon

Question 10

What is Myelin?

Answer 10

A white fatty protein

Question 11

What do myelinated axons do?

Answer 11

Increase the rate

Question 12

What is the speed of an unmyelinated and myelinated axon?

Answer 12

Unmyelinated - 1m/sec
Myelinated - 150m/sec

Question 13

What is the Node of Ranvier?

Answer 13

The space between the myelin

Question 14

What does the Neuron do?

Answer 14

It’s excitable
Responds to Stimuli
Has extreme longevity

Question 15

Nerves that come through the spinal cord do not what?

Answer 15

Regenerate

Question 16

Dendrites are the what?

Answer 16

Receptive component

Question 17

Axons is the what?

Answer 17

Conducting region

Question 18

What is the outside layer of the Mylon Sheath called?

Answer 18

Neurolemma