The nervous system

Question 1

What are the two main sub-systems of the nervous system?

Answer 1

1. Central nervous system- Controls behaviour and regulates biological processes
2. Peripheral nervous system- transmits messages via millions of neurones to and from the CNS

Question 2

What are the two components of the central nervous system?

Answer 2

1. Brain- responsible for higher mental functions
2. spinal cord- transmits information to and from the brain and controls reflex actions

Question 3

What are the two sub-divisions of the peripheral nervous system?

Answer 3

1. Autonomic nervous system (ANS)
2. Somatic nervous system (SNS)

Question 4

What is the role of the somatic nervous system?

Answer 4

Controls VOLENTARY movements and deals with skeletal muscles
made up of sensory and motor neurones

Question 5

What is the role of the autonomic nervous system?

Answer 5

Controls INVOLENTARY body responses and deals with smooth muscles and glands

Question 6

What are the two sub-divisions of the autonomic nervous system?

Answer 6

1. The sympathetic system- increase bodily activities and mobalizes body for fight or flight
2. the parasympathetic system- restores body to resting levels and conserves energy