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cardiovascular system (heart (pericardial membranes (pericardium cavity…

- - - - intercalated disc
      - plenty mitochondrion
      - 1-2 nucleus
      - has gap junctions
      - actin and myosin in sarcomere
  - - - pericardial fluid for heart lubrication
  - - - SA node/pace maker- in atrium.
        
        initiates contraction impulse & send to all atrium through gap junction
      - AV node in atrium
        
        delay signal
      - purkinjes fibers
        
        stimulate ventricle contraction
      - bundle branches
        
        inter ventricular septum
      - Bundle of his
        
        connect atrium to ventricle
- - - - choroid plexus
      - endocrine glands
      - kidney
      - small intestine
    - - red bone marrow
      - spleen
      - liver
    - - CNS
      - skin skeletal muscles
      - lungs
    - - lens
      - cornea
      - cartilage
      - epithelial tissues
  - - - have valve
      - few elastic fibers
    - - 1-2 layers of smooth muscle
      - some material exchange
      - smallest & collect blood from capillaries
    - - smooth muscle in tunica externa layer
  - - - take blood to organs most distal arteries
        
        popliteal artery
        
        deep palmer artery
    - - 1 -2 layers
      - change diameter to regulate blood flow
    - - move large amount of blood most proximal artery
        
        pulmonary trunk
        
        large branches from aorta
        
        aorta
- - - - bag of hemoglobin
      - contain iron
      - formed in red bone marrow
      - bind with oxygen
      - no nucleus
      - crescent shape
    - - smallest
      - created in red bone marrow
      - stop bleeding
      - not true cell
      - clot formation with fibrinogen
    - - eosinophil
        
        reddish/ orange/pinkish color surrounding nucleus
      - lymphocytes
        
        big nucleus with small crescent shaped without nucleus
      - basophil
        
        no clear nucleus- more grain like
      - monocytes
        
        large in size (3-4 times RBC size)
      - neutrophil
        
        rope like nucleus
  - - - globulin
        
        protection against pathogens
      - fibrinogen
        
        for blood clotting
      - albumin
        
        maintain water in blood vessel