The Nervous System

• The central nervous system - receives information from the senses & controls the body’s responses.

  The central nervous system is made up of the brain & the spinal cord. The brain is the centre of awareness. The spinal cord relays information between the brain & the rest of the body. It’s responsible for reflexes.
• 1. The cerebrum - divided into four lobes, each of which has a different primary function
  2. The cerebellum - involved in controlling a persons motor skills and balance
  3. The brain stem - regulates the automatic functions that are essential for life
  4. The diencephalon - contains the thalamus & hypothalamus. The thalamus - relay station for nerve impulses coming from the senses. Hypothalamus - regulates body temperature, hunger & thirst

  
• The Peripheral Nervous System - relay nerve impulses between the CNS & the rest of the body

  Is divided into the somatic & autonomic
• The Peripheral Nervous system is divided into the somatic & autonomic nervous systems
• The Somatic Nervous System - carries sensory & motor information to & from the CNS
• The Autonomic Nervous System- governs the brain’s involuntary activities & is self-regulatory

  It’s divided into the sympathetic & parasympathetic nervous systems
• Sympathetic Nervous System - 'fight or flight' . Increases heart rate, blood pressure e.t.c.
• Parasympathetic - 'rest & digest'. Inhibits digestion, decreases heart rate e.t.c.
• The Nervous System:

  A) Central Nervous System

  B) Spinal cord

  C) Brain

  D) Peripheral Nervous system

  E) Somatic nervous system

  F) Autonomic nervous system

  G) Sympathetic nervous system

  H) Parasympathetic nervous system