Smooth Muscle

Description

Homework Physiology
mkristaa
Mind Map by mkristaa, updated more than 1 year ago
mkristaa
Created by mkristaa over 9 years ago
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Resource summary

Smooth Muscle
  1. classified
    1. Circular Layers
      1. Blood vessels and Bronchiolos
      2. Longitudinal and circular
        1. Peristaltic Waves
        2. Muscle cells
          1. No sarcomere
            1. More actin and less myosin
              1. thin filaments
                1. Ca2 + calmodulin
                  1. Activates the MLCK chain
                    1. Enzyme that catalyzes the phosphorylation
                      1. phosphorylation : Key for contraction
            2. Lack of Troponin
            3. Relaxation
              1. Ca2 channels closes
                1. Glamodulina dissociates from MLCK
                  1. Also
                    1. Power punch is inhibited by bridge
              2. Contraction
                1. Ca2 high concentration
                  1. sustained contraction
                    1. high despolarization+more Ca2
                      1. highest concentration
                2. Two categories
                  1. Only Unit and Multiple Unit
                    1. Only UnIt: Only some cells receive innervation
                      1. Multiple unit: requires nerve stimulation
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