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23 y/o male patient presents to the ED with serve face and arm muscle…

- - - - Lymph nodes: help fight infection
        
        Blood vessel: blood supply here
- - - - Skeletal muscle solely relies on for stimuli
      - Axon
        
        Dendrite
        
        Nerves
        
        Sensory
        
        Motor
        
        Recieves impulse
        
        Sends impulse
    - - Smooth Muscle (involuntary)
        
        Twitch:
        
        A single action potential that causes a single contraction
        
        Summation:
        
        Two stimuli are received by a muscle in rapid succession
        
        Tetany:
        
        1 more item...
        
        Latent period: Action potential running down sarcolemma, calcium is released
        
        Contraction period: Calcium binds to tropoin
        
        Relaxation period: Calcium pumping out of the sarcoplasm and back into the SR
    - - Within the Endomysium
        
        Fascicle
        
        Made up of a bundle of muscle fibers
        
        Covered by Perimysium
        
        Huge bundle of these muscle fibers that make up a whole fascicle
        
        Completely covered by Epimysium
      - Sacroplasm
        
        cytoplasm of the muscle fiber
        
        Sacrolemma
        
        cell membrane within the muscle fiber
        
        Sacromere
        
        Functional unit of muscle fiber
        
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- - - - Voltage gated calcium channels open
        
        Calcium enters axon terminal, moving down it's electrochemical gradient
        
        Calcium entry causes the neurotransmitter ACh to be released by exocytosis
        
        ACh diffuses across the synaptic cleft and binds to ACh receptors on the sacrolemma
        
        ACh binding opens the ligand gated channels, allowing the passageway of Na into the muscle and K out
        
        More Na ions inside the cell causes depolarization where there is a change in membrane potential from -70mv to closer to 0
        
        Synaptic vesicles that contain ACh
        
        Calcium cause the ACh to exit out of the synaptic vesicle
        
        ACh is released out into the synaptic cleft
        
        1 more item...
- - - - Fractured hemotoma
        
        Internal & external callus formation
        
        Trabecular bone replacement
        
        Remodeling
- - - - Toxin is produced called tetanospasmin
        
        Interferes with the motor neurons