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Question 1

What are the two branches of the nervous system?

Answer 1

Central nervous system and peripheral nervous system

Question 2

What are the two branches of the pns

Answer 2

Automatic and somatic

Question 3

What is the role of automatic nervous system?

Answer 3

Regulates involuntary actions

Question 4

What is the role of the somatic nervous system?

Answer 4

Regulates voluntary actions

Question 5

What are the two branches of the automatic nervous system and what are there roles

Answer 5

Sympathetic-arousing and parasympathetic-calming

Question 6

What are the two branches of the somatic nervous system?

Answer 6

Sensory input and motor output

Question 7

What is the cns?

Answer 7

Brain and spinal chord-in charge of mechanical and chemical actions

Question 8

What is the pns?

Answer 8

Everything except the brain and spinal chord. It relays information between the cns and other parts of the body

Question 9

Neutron

Answer 9

Functional unit of the nervous system

Question 10

Dendrites

Answer 10

Receive chemical signals from the environment or other neurons

Question 11

Axon

Answer 11

Carries electrical impulses away from the cell body

Question 12

Myelin sheath

Answer 12

Acts as insulation for the neuron

Question 13

Schwann cell

Answer 13

Produce myelin sheath

Question 14

Nodes of raniver

Answer 14

Gaps between the myelin sheath

Question 15

Neurilemma

Answer 15

Promotes regeneration of damaged axons-not all nerve cells with myelin sheath have this