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Cardiovascular System, กลุ่ม 2 64315599 นางสาวศศิเขมณัฐ เขษมภัสสร์กร…

- - - - Tunica intima
      - Tunica media
      - Elastic fiber
      - Tunica adventitia => Vasa vasorum
      - High pressure
    - - Tunica intima
        
        Internal elastic lamina
      - Tunica media
        
        External elastic lamina
      - Smooth muscle cells
      - Tunica adventitia
      - Less presure
    - - Tunica intima
        
        Endothelial lining
      - Tunica media
        
        circularly arrange ofsmooth muscle
      - กว้าง 4-20 cm.
      - Tunica adventitia
        
        Thin layer of connective tissue
      - เชื่อมต่อกับ small artery & capillary
    - - Fenestrated capillary (type 2)
      - Discontinuous capillary (type 3)
      - Continuous capillary (type 1)
  - - - Tunica media
        
        Collagen & Elastic fiber & Smooth muscle => circularly
        
        Internal elastic lamina => thin
      - Tunica adventitia
        
        =>Thick layer
        => Smooth muscles > logitudinal
      - Tunica intima
        
        Internal elastic lamina => thin
    - - thin wall
      - Large & irregular lumen
      - High permeability
      - Endothelial cells => pore
    - - Tunica intima
        
        Endothelial lining
        
        Internal elastic lamina => thin
      - Tunica media
        
        Head , Neck & Abdomen => thin
        
        Lower limb => thick
        
        Circular smooth muscle
        
        External elastic lamina => thin
      - Tunica adventitia
        
        ชั้นหนา
        
        Bundle of collagen & elastic fibers
- - - - Fibrous skeleton
      - Endocardium
        
        : Thick atrium => ventricle
      - Bicuspid valve
      - Central plate
        
        dense fibrous CNT
      - Tricuspid valve
    - - Aortic valve
      - Pulmonary valve
  - - - Endothelium
      - Subendocardium
        
        Purkinje fibers
        
        No intercalated disc
        
        Gap junction
        
        Glycogen
        
        Vesicular nucleus
      - Thick : atrium => ventricle
        AV => semilunar valve
      - Subendothelium
        
        dense CNT
    - - Elastic fiber
      - Intercalated disc => gap junction & desmosome
      - Cardiac muscle : many direction
      - Atrium : pectinate muscle
      - Thick : ventricle
    - - Mesothelium
        
        serous fluid
        
        Simple squamous epithelium
      - Fibroelastic CNT
        
        Elastic fibers
        
        ใต้ mesothelium
      - Visceral pericardium
      - Subepicardial layer
        
        พบได้ที่ coronary artery , cardiac vein
        
        Sinoatrial node (SA node)
        
        เป็น loose CNT มี fat cell เป็นจำนวนมาก