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Circulatory System (Heart (Organ that pumps the blood through the system,…

- - - - Heart cannot move blood efficiently
    - - Inadequate or absent blood flow to area of heart muscle
- - - - Yellowish, straw colored liquid that comprises about 55% of bloods volume
    - - 90% water, other 10% contains nutrients, salts, oxygen, hormones, and other regulatory substances
        
        Red Blood Cells (RBC's) or erythrocytes
        
        White Blood Cells (WBC's) or leukocytes
        
        Basophils
        
        Eosinophils
        
        Lymphocytes
        
        Monocytes
        
        Neutrophils
        
        Polymorphonuclear Granulocytes:
        
        Mononuclear Cells:
        
        Thrombocytes or platelets
        
        Aid in clotting
- - - - Carry blood away from the heart
      - Carotid artery:
        
        Largest arteries on the side of the neck that take blood from the heart to the head
    - - Smaller vessels
    - - Nutrients are exchanged
    - - Enlarge and become veins
    - - Carry blood toward the heart, they have valves and thinner walls. They are more numerous and have larger capacity
      - Jugular Veins:
        
        Largest veins that take blood from your head to the heart
  - - - Thickening of inner layer (hardening) of the arteries
    - - Fatty deposits called plaques build up on inner lining of blood vessels