The Nervous System Part 1

Brain and Behaviour (taken from lecture week 1)

Neuron

Cells that send and receive signals.

Glia

Cells that provide structure in the brain 

Sensory nerves

Collects information to sense the internal state of the body or the environmental influences of the body

Motor nerves

Transmits information from the central nervous system to the muscles, organs and glands 

Autonomic nervous system

Associated with internal organs. Cancels each other out - e.g speed/relax. The autonomic nervous system includes a network of nerves that extend throughout your head and body. 

Sympathetic

Sympathetic division fibres are arranged along the spinal cord in a way that gets them closer to the organ they interface with. 

Uses neurotransmitter norepinephrine (noradrenaline) boosts activity

Parasympathetic

Uses acetylcholine (slows down activity)

Enteric nervous system

In charge of digestion, it is local and controlled by the CNS.

Dorsal

sensory