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CARDIOVASCULAR SYSTEM (HEART (ANATOMY OF MYOCARDIUM (Intercalated discs (A…

- - - - Made from dense irregular connective tissue
      - Keeps heart from overfilling
      - A sack that encloses the heart
    - - Partietal and viseral
        
        Made from simple squamous epithelium
    - - Slippery and lubricated
        
        Serous fluid is in here
  - - - Outer surface of the heart
        
        Protective layer
    - - Composed of cardiac muscle
    - - Lines the inside of the heart
  - - - A site for strong adhesion
    - - Desmosome like structures
    - - For electrical signals
  - - - Pressure causes these valves to open
      - Blood flows in when open
    - - Prevent back flow from the arteries
  - - - The pace maker of the heart
      - generates a signal
    - - They delay the signal while the ventricles fill with blood
- - - - Able to move large amounts of blood
    - - Takes blood to organs and parts of organs
    - - Little arteries
  - - - Few elastic fibers
    - - Smaller
      - most like capillaries
      - still some exchange
  - - - Most common type
    - - Have pores
      - high rates of exchange
    - - Large and winding
        
        Makes it easy for large exchanges
      - Located in red bone marrow
    - - A network of capillaries
- - - - Ions, sugar, hormones, lipids and nutrients
  - - - Albumin
        
        Helps keep water in our blood vessels
      - Grobulin
        
        Protects us from pathogens
      - Fibrinogen
        
        Helps with blood clotting
    - - Bags of hemoglobin
      - needs iron to transport oxygen
    - - Neutrophil
      - Monocytes
      - Lymphocytes
      - Basophil
      - Eosinophil
    - - Smaller bits of erythrocytes
      - Help plug leaks
      - Helps with clot formation