Circulatory system

• What is the primary function of the circulatory system?

  To deliver substances throughout the body
• What is the function of heart valves?

  • Prevent backflow of blood
  • Ensure unidirectional blood flow through the heart
  • Valves include: tricuspid, mitral (bicuspid), pulmonary, and aortic
• What does blood carry in the circulatory system?

  Oxygen, nutrients, and waste
• What is the valve located between the right atrium and the right ventricle?

  Tricuspid Valve
• What role does the heart play in the circulatory system?

  It acts as the pump for blood movement
• Which large vein brings deoxygenated blood from the lower body to the heart?

  Inferior Vena Cava
• Which artery carries blood from the right ventricle to the lungs?

  Pulmonary artery
• What is the name of the valve located between the right ventricle and the pulmonary artery?

  Pulmonary Valve
• Which veins carry oxygenated blood from the lungs to the left atrium?

  Pulmonary Veins
• What is the flow of blood through the left side of the heart?

  • Oxygenated blood enters the left atrium from the pulmonary veins
  • Blood flows through the mitral valve into the left ventricle
  • The left ventricle pumps blood through the aortic valve into the aorta, which distributes blood to the body
• What is the function of the right side of the heart?

  It pumps deoxygenated blood to the lungs
• Which chamber of the heart receives deoxygenated blood from the body?

  Right Atrium
• What large vein brings deoxygenated blood from the upper body to the right atrium?

  Superior Vena Cava
• Which large artery carries oxygenated blood from the left ventricle to the body?

  Aorta
• Which large vein brings deoxygenated blood from the lower body to the heart?

  Inferior Vena Cava
• What is the name of the chamber that pumps deoxygenated blood to the lungs?

  Right Ventricle
• How do the left and right sides of the heart differ in function?

  The left pumps oxygenated blood; the right pumps deoxygenated blood
• What is the name of the blood vessel that carries blood away from the heart?

  Artery
• What is the flow of blood through the right side of the heart?

  • Deoxygenated blood enters the right atrium from the superior and inferior vena cava
  • Blood flows through the tricuspid valve into the right ventricle
  • The right ventricle pumps blood through the pulmonary valve into the pulmonary artery, which leads to the lungs
• What is the valve between the left atrium and left ventricle called?

  Mitral Valve
• What are the key components of the heart?

  • Two atria (left and right) receive blood
  • Two ventricles (left and right) pump blood out
  • Valves control blood flow between chambers
  • Major vessels (aorta, vena cava, pulmonary arteries/veins) connect to circulatory system
• What are the three main components of the circulatory system?

  • Heart
  • Blood vessels
  • Blood
• What is the primary function of capillaries?

  Exchange of oxygen, nutrients, and waste
• How do capillaries connect arteries and veins?

  By forming a network
• What are the three main types of blood vessels?

  Arteries, veins, capillaries
• What is the function of capillaries in the circulatory system?

  • Capillaries are the smallest blood vessels that allow for the exchange of oxygen, nutrients, and waste between the blood and body tissues.
• Which chamber pumps oxygenated blood to the body?

  Left Ventricle
• What valve controls blood flow from the left ventricle into the aorta?

  Aortic Valve
• What is the valve located between the right atrium and the right ventricle?

  Tricuspid Valve
• What is the function of blood vessels in the circulatory system?

  They carry blood to all body parts
• What percentage of blood is made up of plasma?

  About 55%
• What type of blood do capillaries carry?

  Mixed blood
• In which direction do arteries carry blood?

  Away from the heart
• Which chamber pumps oxygenated blood to the body?

  Left Ventricle
• What is the main artery that carries blood from the heart to the lungs called?

  Main Pulmonary Artery
• How do the components of the circulatory system work together?

  The heart pumps blood through vessels carrying nutrients
• What is the wall structure of arteries?

  Thick and muscular walls
• What type of blood do arteries carry?

  Oxygenated blood
• How does blood flow through the circulatory system?

  • Blood flows from the heart to the arteries, then to the capillaries, and finally back to the heart through the veins.
• What type of blood enters the Right Atrium?

  Deoxygenated blood