Biopsychology: The Nervous system

Question 1

Nervous system

Answer 1

Specialised network of cells in human body and is our primary internal communication with two main functions:

1. Collect, Process and respond to information in the environment
2. Co-ordinate the working of the different organs and cells in the body

Divided into two sub systems: CNS and PNS
(Central nervous system & Peripheral nervous system)

Question 2

The central nervous system (CNS)

Answer 2

The CNS is made up of the brain and spinal cord. Passes information to and from the bras and connects nerves to the PNS

Brain: centre of all conscious awareness, the outer layer “the cerebral cortex” is highly developed in humans. The brain is divided into two hemispheres.

Spinal cord: extension on the brain, responsible for reflex actions such as pulling your hand away from a hot plate.

Question 3

The peripheral nervous system (PNS) - ANS & SNS

Answer 3

Transmits messages via millions of neutrons to and from the CNS. Subdivided into:

Autonomic nervous system (ANS): governs vital functions in the body such as breathing and heart rate

Somatic nervous system(SNS): controls muscle movement and receives information from sensory receptors