2- Structure Of The Nervous System

Question 1

What is the human nervous system comprised of?

Answer 1

The central nervous and system and the peripheral nervous system

Question 2

What are the components of the CNS?

Answer 2

The brain and spinal cord

Question 3

What is the peripheral nervous system further broken down into?

Answer 3

The somatic and autonomic nervous systems

Question 4

What is the function of the somatic nervous system and the autonomic nervous system?

Answer 4

Somatic nervous system:
- innervates skin, joints and skeletal muscle
- responsible for movement and voluntary action

Autonomic nervous system:
- innervates cardiovascular system, organs and smooth muscles
- responsible for involuntary actions
- heart rate, blood pressure, digestion, breathing

Question 5

What are the branches of the autonomic nervous system and what are their functions?

Answer 5

Sympathetic nervous system
- fight or flight
- increase HR and BP
- decrease digestion

Parasympathetic nervous system:
- rest and digest
- decrease HR and BP
- increase digestion