circulatory system

• 3 major parts of the circulatory system

  heart

  blood vessels

  blood
• it is the muscular part of the heart wall. it contracts

  myocardium
• it is the thin, innermost layer that lines the heart chambers

  endocardium
• refers to the 4 compartments of the heart

  chambers
• refers to the upper chambers of the heart

  right and left atrium
• the lower chambers of the heart

  right and left ventricles
• hollow chambers of the heart

  right and left atrium

  right and left ventricle
• these are the receiving chambers

  atria
• these are the discharging or pumping chambers

  ventricles
• receives oxygenated blood from the lungs

  left atrium
• receives deoxygenated blood from the systemic circulation

  right atrium
• main chamber of our heart that is responsible for pumping oxygenated blood into our aorta

  left ventricle
• most anterior of the four chambers. it receives deoxygenated blood from the right atrium

  right ventricle
• 4 valves that facilitate the flow of blood

  
  

  2 atrioventricular valves

  2 semilunar valves
• it keeps the blood moving in the right direction

  mitral valve
• these valves' flaps open to let blood flow from the right atrium to the right ventricle

  tricuspid valve
• the artery that delivers blood to the lungs

  pulmonary valve
• separates the left ventricle and the aorta

  aortic valve
• it drains blood from the upper parts of the body

  superior vena cava
• it collects blood from the lower parts of the body

  inferior vena cava
• type of circulation that carries deoxygenated blood from the heart to lungs

  pulmonary circulation
• type of circulation that carries oxygenated blood from the heart to the rest of the body

  systematic circulation
• the heart makes a "lub" sound when which valve closes

  aortic
• the heart makes a "dub" sound when which valve closes

  semilunar
• it is the largest artery in the body. it also carries oxygenated blood away from the heart to the rest of the body

  aorta
• artery that carries deoxygenated blood from the right ventricle to the lungs

  pulmonary artery
• largest vein of the human body

  inferior vena cava
• carries the blood throughout the body

  blood vessel
• 3 types of blood vessels

  
  

  arteries

  veins

  capillaries
• blood vessel that carries oxygenated blood away from the heart

  arteries
• blood vessel that carries deoxygenated blood to the heart

  veins
• smallest blood vessels

  capillaries
• fluid that carries the materials throughout the body

  blood
• this is where blood cells are made

  bone marrow
• composition of blood that is 90% water. it is a colored liquid that carries the cells and platelets. it makes up about 55% of the blood

  plasma
• it is a round and flat disc with a nucleus. it is responsible for carrying oxygen

  red blood cells
• granulocytes and lymphocytes that fight diseases and produce antitoxins

  white blood cells
• these are bits of cells that produce enzymes

  platelets
• 5 human blood groups

  A

  B

  AB

  O
• Rh positive indicates the presence of protein