HEART PDF

• Heart


  A muscular organ that pumps blood through the body
• Heart


  • Pumps approx. 5L/min of blood
  • Approx the size of a closed fist
• Cardiovascular system


  The heart + blood vessels + blood
• Pulmonary circulation


  1. Right side of the heart pumps blood to the lungs

  2. Then back to the left side
• Systemic circulation


  1. Left side of the heart pumps blood to all other tissues of the body

  2. Then back to the right side
• Functions of the heart

  • Generating blood pressure
  • Routing blood
  • Ensuring one-way blood flow
  • Regulating blood supply
• Apex


  Blunt, rounded point of the heart
• Base


  Larger, flat part at the opposite end of the heart
• Mediastinum


  Midline partition
• Pericardial cavity


  Surrounding cavity of the heart
• Pericardium/Pericardial cavity


  Where the heart lies
• Pericardium/Pericardial sac


  Surrounds the heart and anchors it within the mediastinum
• Fibrous pericardium


  Tough, fibrous connective tissue outer layer
• Serous pericardium


  Thin layer of connective tissue
• Parietal pericardium


  Serous pericardium lining the fibrous pericardium
• Visceral pericardium/Epicardium


  Portion covering the heart surface
• Pericardial fluid


  Produced by the serous pericardium; reduces friction as the heart moves
• Atria


  Entrance chamber
• Ventricles


  Cavities
• Coronary sulcus


  Separates the atria from the ventricles
• location and shape of the heart(names of parts)

  A) Superior Vena Cava

  B) Pulmonary Artery

  C) Pulmonary Veins

  D) Pulmonic Valve

  E) Tricuspid Valve

  F) Inferior Vena Cava

  G) Aorta

  H) Pulmonary Artery

  I) Pulmonary Veins

  J) Left Atrium

  K) Mitral Valve

  L) Aortic valve

  M) Left Ventricle

  N) Right Atrium

  O) Right Ventricle

  
• Heart Valves

  A) Superior Vena Cava

  B) aorta

  C) pulmonary artery

  D) pulmonary veins

  E) left atrium

  F) mitral valve

  G) right atrium

  H) pulmonary valve

  I) aortic valve

  J) left ventricle

  K) tricuspid valve

  L) right ventricle

  M) inferior vena cava