Please enable JavaScript.

Coggle requires JavaScript to display documents.

Control of Muscle (Nervous system (Micro: Cell structure (axon (diameter…

- - - - protein synthesis sometimes occurs here
      - convert chemical signals into electrical signals and send to soma
    - - diameter variation, in humans a micrometer in a squid a millimetre
      - Axons are specialized for the conduction of a particular type of electric impulse
      - In humans, axons may be more than a meter long
    - - protein degradation via lysozomes
      - protein synthesis
    - - sites
        
        soma
        
        dendrites
      - transport
        
        anterograde and retrograde
        
        along the axonal microtubules
  - - - depolarization of the membrane followed by rapid repolarization
        
        resting potential (default non-stimulated state)
        
        −60 mV
        
        the inside of the axon is negatively charged relative to its exterior
        
        action potential
        
        sent outward from the cell body toward the axon terminus
        
        move at 100m/ second
        
        An action potential originates at the axon hillock
      - A single axon in the central nervous system can synapse with many neurons and induce responses in all of them simultaneously.
  - - - CNS
        
        the brain and spinal cord and is composed mainly of interneurons
      - PNS
        
        motor neuron (efferent)
        
        somatic (voluntary)
        
        arms, legs, and neck
        
        cell bodies located in CNS
        
        autonomic (automatic)
        
        smooth muscle, heart, ands, heart muscle, muscles that surround the gastrointestinal tract
        
        types
        
        SYMPATHETIC : for fight or flight
        
        PARASYMPATHETIC: rest, relax, breed and breathe
        
        sensory neuron (afferent)
        
        somatic (conscious)
        
        visceral (unconscious)
        
        innervate viscera