1. Peripheral Nervous System
1.1. Sensory Nerves
1.1.1. Input to CNS from Sensory Organs
1.1.1.1. Nose
1.1.1.2. Tongue
1.1.1.3. Skin
1.1.1.4. Eyes
1.1.1.5. Ears
1.1.1.6. Vestibular Apparatus
1.2. Motor Nerves
1.2.1. Output from CNS to muscles
1.3. Autonomic Nervous System
1.3.1. Sympathetic
1.3.1.1. Prepares for action
1.3.1.1.1. Blood Pressure
1.3.1.1.2. Heartbeat
1.3.1.1.3. Ejaculation
1.3.2. Four F's
1.3.2.1. Feed
1.3.2.2. Flight
1.3.2.3. Fight
1.3.2.4. Fuck
1.3.3. Parasympathetic
1.3.3.1. Prepares for Rest + Recuperation
1.3.3.1.1. Salivation
1.3.3.1.2. Digestion
1.3.3.1.3. Erection
1.3.4. Drugs used to treat psych conditions affect ANS
1.3.4.1. Same neurotransmitters as brain
1.3.4.1.1. Dopamine
1.3.4.1.2. Serotonin
1.4. Enteric Nervous System
1.4.1. Interacts with ANS but can be independent
1.4.2. Half a billion neurons in walls of guts
1.4.2.1. Same complexity as a cat's brains
1.4.2.2. Oesophagus to Anus
1.4.3. Tells your gut how to digest food
1.4.3.1. Secretion of enzymes
1.4.3.2. Peristalsis
1.4.3.2.1. Pushing of food/faeces through system
1.4.4. Picks up sensory information about gut
1.4.4.1. Physical
1.4.4.2. Chemical balance of gut
1.4.4.2.1. Important for psychological state
1.4.4.2.2. Influences behaviour
1.4.4.2.3. Antibiotics can kill gut bacteria
2. Central Nervous System
2.1. Brain
2.1.1. Protected by:
2.1.1.1. Bone
2.1.1.1.1. Skull
2.1.1.2. Blood Brain Barrier
2.1.1.2.1. Bloody supply to brain
2.1.1.2.2. Very energy demanding
2.1.1.3. Meninges
2.1.1.3.1. Dura Mater
2.1.1.3.2. Arachnoid Membrane
2.1.1.3.3. Pra Mater
2.1.2. Responsible for complex processes
2.1.2.1. Emotion
2.1.2.2. Perception
2.1.2.3. Thought
2.1.2.4. Behaviour
2.1.3. Physical properties
2.1.3.1. Two hemispheres
2.1.3.2. Four Ventricles
2.1.3.2.1. Sewerage system of CNS
2.1.3.2.2. Cavities inside brain
2.1.3.2.3. Filled with Cerebro-spinal fluid
2.1.3.2.4. Block
2.2. Spinal Chord
2.2.1. Cable of neural fibres with branches
2.2.1.1. Branches travel up to brain to transfer info