The Nervous System

Question 1

What are the 2 main sub-systems of the nervous systems?

Answer 1

Central nervous system and peripheral nervous system

Question 2

What is the central nervous system (CNS) made up of?

Answer 2

1) Brain 2) Spinal cord

Question 3

What is the peripheral nervous system (PNS) made up of?

Answer 3

Millions of neurones which carry electrical impulses to and from the CNS

Question 4

What are the 2 sub-divisions of the PNS?

Answer 4

1) The Autonomic nervous system (ANS)= parasympathetic and sympathetic nervous system
2) The somatic nervous system (SNS)

Question 5

What is the role of the somatic nervous system?

Answer 5

To control voluntary movements and deals with skeletal muscles. Made up of sensory and motor neurons

Question 6

What is the role of the autonomic nervous system?

Answer 6

To control involuntary movements and deals with smooth muscles and glands

Question 7

What is the autonomic nervous system sub-divided into?

Answer 7

Sympathetic and parasympathetic systems

Question 8

What is the role of the sympathetic nervous system?

Answer 8

To increase bodily activities and mobilize body for fight or flight

Question 9

What is the role of the parasympathetic system?

Answer 9

Restores the body to resting levels and conserves energy

Question 10

What is the role of the brain and the spinal cord in the CNS?

Answer 10

• Brain= governs our conscious awareness and coordinates sensation, intellectual and nervous activity
  Spinal cord= transmits info. to and from brain, and responsible for reflex actions