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Nervous System (BRAIN ANATOMY (Cerebellum (Located under cerebrum, small…

- - - - Parietal
        
        Interprets language
        Sense of touch, pain, temperature
        Interprets signals from vision, hearing, motor, and memory
        Spatial and visual perception
      - Frontal
        
        Personality, behaviour, emotions
        Judgment, planning, problem solving
        Speech
        Body movement
        Intelligence, concentration, self awareness
      - Occipital
        
        Interprets vision: colour, light, movement
      - Temporal
        
        Understanding language
        Memory
        Hearing
        Sequencing and organisation
        Senses of smell and sound
- - - - Spinal cord + brain
  - - - FUNCTION
        
        Somatic NS: interacts with the environment
        (external).
        
        Afferent: transmit signals from the skin,
        eyes, etc., towards the CNS.
        
        Efferent: Drive motor signals from the CNS
        towards skeletal muscle.
        
        Voluntary control of skin, bones, joints and
        skeletal muscle.
        
        Autonomic NS: regulates the internal environment of the organism.
        
        Afferent: Carries signals from internal organs
        towards the CNS.
        
        Involuntary control of internal organs, blood vessels,
        cardiac and smooth muscle.
        
        Efferent: Drive motor signals from CNS to
        internal organs.
        
        Sympathetic NS: Activates the organism, uses energy and
        normally works during the day.
        
        Parasympathetic NS: Opposite effects of the sympathetic
        system, as it relaxes the organism, reduces energy
        consumption and normally works during the night.
- - - - Dendrite: receive stimulus from other neurons.
        Soma or cell body: main portion of the cell with genetic
        material.
        Axon: extension that transmits electro-chemical signals to
        other neurons.
        Myelin sheath: fatty cells wrapped around axon, that work
        as insulation or protection.
        Axon ending: the electro-chemical signal is converted into
        a chemical message that travels to the next neuron.
        
        NERVE IMPULSE
        
        Electrical signal that travels along an axon.
        Way of coding information quickly and accurately.
        
        Dendrite → cell body → axon → synapse
        
        Synapse: tiny gap between
        axon ending and dendrite of
        next neuron.
        
        SYNAPTIC FUNCTION
        
        1 more item...
        
        When a nerve impulse reaches the synapse at the end of a neuron, it cannot pass directly to the next one. Instead, it triggers the neuron to release a chemical neurotransmitter.