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Nervous tissue - Coggle Diagram

- - - - Function
        
        Metabolic and synthetic function of neurone
      - contain nucleus & nucleolus
      - Nissl bodies
        
        Rough endoplasmic reticulum & ribosome
        
        Acive site for protein synthesis
        
        Present in dendrite , cell body except axon hillock
    - - Cary impulse towards the cell body
    - - Carry impulse away from the cell body
      - Arises from the axon hillock
  - - - Pseudounipolar
        
        1 axon, 1 dendrite
        
        Dorsal Root Ganglion
        
        One process emanating from soma
      - Bipolar
        
        1 axon, 1 dendrite
        
        special sense organ, retina, internal ear
      - Multipolar
        
        1 axon, many dendrite
        
        Golgi type 1
        
        Large cell body, long axon
        
        Pyramidal cell of cerebral cortex
        
        Golgi type 2
        
        Small cell body, short axon
        
        Stellate cell in cerebellar cortex
    - - Motor
      - Sensory
      - Interneuron
    - - Cholinergic neurone
        
        Acetylcholine
      - Adrenergic, Noadrenergic
        
        Adrenalin noradrenalin
      - GABAergic neurone
        
        GABA
      - Dopaminergic neurone
        
        Dopamine
      - Serotonergic neurone
        
        Serotonin
      - Glycinergic neuron
        
        Glycine
- - - - entire nerve
    - - bundles of axons
    - - individual axons
  - - - Covered by many layers of plasma membrane of schwann cell
    - - invaginate the plasma membrane of schwann cell
  - - - Non-encapsulated
      - Encapsulated
- - - - Types
        
        Fibrous, white matter
        
        Protoplasmic, grey matter
      - Functions
        
        Support& brace neurone
        
        Anchor neuron to nutrient (capillaries)
        
        giude neurone migration
        
        control chemical environment, blood-brain barrier
    - - produce myelin in CNS
    - - Phagocytic cell
      - remove foreign and degenerated material
    - - Epithelial, squamous to columnar-shaped cells. cillia
      - Lines the central cavities of brain and spinal cord
  - - - Form myelin sheaths peripheral axons
    - - Support neuron in ganglia of the PNS
- - - - Transmitting neurone
      - Synaptic vesicles
      - With neurotransmitter
    - - gap between 2 cells
    - - receptor sites for meurotransmitters
  - - - Chemical, neurotransmitter
      - Electrical, direct ionic current
    - - Axodendritic, axon to dendrite
      - Axosomatic, axon and cell body
      - Axoaxonic, axon to axon