The nervous system

• Somatic Nervous System (SNS)


  the part of the peripheral nervous system that controls voluntary movement of skeletal muscles and receives information from
• autonomic nervous system (ANS)


  the part of the peripheral nervous system that controls internal biological functions

  - heart rate, digestion, sexual arousal
• Spinal Cord (Central Nervous System)

  - An extension of the brain

  - Connects nerves to peripheral nervous system
• Brain (Central Nervous System)

  - Centre of all conscious awareness

  - cerebral cortex is highly developed in humans

  - Divided into 2 hemispheres
• The nervous system - divisions/ subdivisons

  
• What are the 2 main functions of the nervous system?

  1. To collect, process and respond to information in the environment

  2. To co-ordinate the working of different organs and cells in the body
• What is the nervous system?

  A specialised network of cells in the human body and is our primary internal communication system