Nervous System Quiz

Question 1

The central nervous system is considered the “…..” center

Answer 1

Control

Question 2

Functions of CNS:

Answer 2

Receiving sensory input
Relaying motor impulses
Center for higher functions

Question 3

The CNS is composed of two things:

Answer 3

Brain

Spinal cord

Question 4

The PNS functions to …….. to and from the CNS

Answer 4

Carry information

Question 5

The PNS is composed of the ….

Answer 5

Sensory nerves

Motor nerves

Question 6

Sensory nerves carry info ….. the brain

Answer 6

To

Question 6

Motory nerves carry info ….. the brain

Answer 6

From

Question 6

What are the two motor nerves -

Answer 6

Somatic

Autonomic

Question 7

The somatic is to …… - and ……

Answer 7

Skeletal ; voluntary

Question 8

Its to smooth/cardiac muscle ; - …….

Answer 8

Involuntary

Question 9

…….. division- fight or flight; fear responses -

Answer 9

Sympathetic

Question 10

………. division: rest and repair -

Answer 10

Parasympathetic

Question 11

It occurs when more then 1 presynaptic axon synapses w/ a single postsynaptic neuron. -

Answer 11

Convergence

Question 12

Info from several, funneled into one -

Answer 12

Convergence

Question 13

It occurs When single presynaptic axon synapses w/ many different post-neurons -

Answer 13

Divergence

Question 14

It allows info. To be sent to many places -

Answer 14

Divergence

Question 15

How does a neuron reset to resting?

Answer 15

NA+ and K+ pump uses ATP to force 3NA+ out and 2K+ in

Question 16

Two advantages of salutatory conduction -

Answer 16

1. Faster

2. Less energy