Heart Anatomy

• The heart has four valves that control blood flow through it.
• The left ventricle is the lower chamber on the left side.
• The right atrium is the upper chamber on the right side.
• The right atrium receives deoxygenated blood from the body.
• The pulmonary semilunar valve controls blood flow to the lungs.
• The pulmonary semilunar valve controls blood flow out of the right ventricle into the pulmonary artery.
• The tricuspid valve separates the right atrium from the right ventricle.
• The heart has four chambers, two atria and two ventricles.
• The aortic semilunar valve controls blood flow out of the left ventricle into the aorta.
• The aortic semilunar valve controls blood flow out of the heart into the arteries.
• Deoxygenated blood enters the right atrium from the superior vena cava (SVC) and inferior vena cava (IVC).
• The mitral (bicuspid) valve is located between the left atrium and left ventricle.
• The mitral (bicuspid) valve prevents backflow of blood from the left ventricle into the left atrium during contraction.
• The interventricular septum divides the right and left ventricles.
• Deoxygenated blood from the upper and lower body flows through the superior and inferior vena cava.
• The superior and inferior vena cava empty blood into the right atrium.
• Blood from the right atrium passes through the tricuspid valve.
• Blood from the right ventricle passes through the pulmonary semilunar valve.
• Blood flows through the pulmonary semilunar valve into the right and left pulmonary arteries.
• Pulmonary arteries takes blood to the lungs for gas exchange.
• Right and left pulmonary veins bring the blood back to heart.
• Pulmonary veins empty blood into the left atrium.
• The blood from the left atrium flows through the mitral (or bicuspid) valve.
• After passing through the mitral valve, blood enters the left ventricle.
• Blood from the left ventricle passes through the aortic semilunar valve.
• After passing through the aortic semilunar valve, the blood enters the aorta and is then pumped to the rest of the body.
• How Many Valves? And what is there name?

  Tricuspid Valve, Pulmonary Semilunar Valve, Mitral (Bicuspid) Valve, and Aortic (Semilunar) Valve.
• Four Chambers of the Heart:

  • Right Atrium
  • Right Ventricle
  • Left Atrium
  • Left Ventricle
• Where is the heart located:

  Located under ribcage and in between the lungs.
• What is the primary function of the Heart?

  Pumping oxygenated and nutrient - rich blood to the body and deoxygenated blood to the lungs for gas exchange.
• How does the heart ensure blood flows in one direction?

  Through the use of valves that prevent back flow
• What happens to blood in the lungs during gas exchange?

  Blood picks up oxygen and transfers carbon dioxide to the lungs for exhalation, becoming oxygenated.
• How does the heart anatomy facilitate its function?

  The heart is divided into right and left halves by the septum, with each side having an atrium and a ventricle to receive and pump blood, respectively.