Blood Vessels

• ↑
  • Vascular System

Blood Vessels

• Endothelium is a thin layer inside of the blood vessels

• Coronary

• Oxygenated Blood

  • Arteries
    • Carry blood away from heart
  • Arterioles

    • Blood is distributed to all body tissues

    • Arterioles distribute blood to all the body tissues. Exception: Pulmonary Artery

    • Exception: Pulmonary Artery

• Deoxygenated blood

  • Capillaries
    • Exchanges gas
  • Veins and Venules
    • Returns blood to heart
    • One way valves ^[Varicose Veins]
      • What are the one way valves in veins called ;; Varicose Veins
    • Assisted by
      • Skeletal Muscle Pump
        • Muscles that help the blood up.
        • Increases Blood Pressure to move it up as well.
      • Thoracic Pump
        • Breathing decreases pressure in the thoracic cavity, and increases pressure in the abdominal cavity which moves from low to high pressue to move the blood up.
      • Venoconstriction
        • Vein constriction
        • If cardiac output needs to increase, it constricts the veins and also helps the blood move from high to low pressure.
      • What assists veins in returning blood to the heart? ;; Skeletal Muscle Pump, Thoracic Pump and Venoconstriction.
  • Exception: Pulmonary Vein

• What is in our Blood Vessels?

  • Plasma 55%
    • 90% Water
    • 7% Plasma Proteins
    • 3% Acids and salts
  • Blood Cells
    • Erythrocytes ;; Red Blood Cell
      • Oxygen Transport - YouTube
      • Carbon Dioxide Transport
    • Leukocytes ;; White Blood Cells
    • Thrombocytes ;; Platelets