2.2.2 The Heart and Blood Vessels

• What type of organ is the heart?

  Muscular organ
• The right atrium receives oxygenated blood from the lungs.

  False
• The left atrium receives oxygenated blood from the lungs
• What is the name of the valve between the right atrium and right ventricle?

  Tricuspid valve
• Match the heart valve with its location:

  Tricuspid valve ↔️ Between right atrium and right ventricle

  Pulmonary valve ↔️ Between right ventricle and pulmonary artery

  Mitral valve ↔️ Between left atrium and left ventricle

  Aortic valve ↔️ Between left ventricle and aorta
• The right ventricle pumps deoxygenated blood to the lungs
• The mitral valve is located between the left atrium and left ventricle.


  True
• What type of blood does the right atrium receive?

  Deoxygenated blood
• Which chamber pumps oxygenated blood to the body?

  Left ventricle
• The pulmonary valve is located between the right ventricle and the pulmonary artery
• Order the steps in blood flow through the heart and lungs:

  1️⃣ Deoxygenated blood enters right atrium

  2️⃣ Right ventricle pumps blood to lungs

  3️⃣ Oxygenated blood enters left atrium

  4️⃣ Left ventricle pumps blood to body
• From which organ does the pulmonary veins carry oxygenated blood to the heart?

  Lungs
• The arrangement of the heart chambers ensures efficient circulation of oxygenated and deoxygenated blood throughout the body.

  True
• The right atrium receives deoxygenated blood from the body
• Match the heart valve with its function:

  Tricuspid ↔️ Prevents backflow into right atrium

  Pulmonary ↔️ Prevents backflow into right ventricle

  Mitral ↔️ Prevents backflow into left atrium

  Aortic ↔️ Prevents backflow into left ventricle
• The pulmonary valve prevents backflow into the right ventricle
• What are the three main types of blood vessels in the circulatory system?

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

  Carry deoxygenated blood to heart
• What is the structure of capillaries that allows for gas exchange with tissues?

  One cell layer thick
• The tricuspid valve prevents backflow of blood into the right atrium.

  True
• The mitral valve is located between the left atrium and left ventricle
• The left ventricle pumps oxygenated blood to the body via the aorta.


  True
• Match the heart valve with its position:

  Tricuspid ↔️ Between right atrium and right ventricle

  Pulmonary ↔️ Between right ventricle and pulmonary artery

  Mitral ↔️ Between left atrium and left ventricle

  Aortic ↔️ Between left ventricle and aorta
• Heart valves ensure blood moves in the correct direction to deliver oxygen and nutrients efficiently.


  True
• The tricuspid valve is located between the right atrium and right ventricle
• Which valve prevents backflow into the left atrium?

  Mitral
• Heart valves ensure blood moves in the correct direction during each heartbeat.


  True
• What are the three main types of blood vessels?

  Arteries, veins, capillaries
• Veins contain valves to prevent backflow of blood.


  True
• Steps in pulmonary circulation:

  1️⃣ Deoxygenated blood flows from the heart to the lungs

  2️⃣ Blood is oxygenated in the lungs

  3️⃣ Oxygenated blood returns to the heart
• The pulmonary and systemic circulations ensure efficient oxygenation and nutrient delivery.

  True
• Which heart valve prevents backflow into the left atrium?

  Mitral
• What protein in red blood cells binds to oxygen?

  Hemoglobin
• Deoxygenated blood has a reduced nutrient content.


  True
• How many chambers does the heart have?

  Four
• Which heart valve prevents backflow into the right atrium?

  Tricuspid valve
• Arrange the heart valves in the order blood flows through them:

  1️⃣ Tricuspid valve

  2️⃣ Pulmonary valve

  3️⃣ Mitral valve

  4️⃣ Aortic valve
• Heart valves open and close during each heartbeat to ensure unidirectional blood flow.


  True
• Match the blood vessel with its function:

  Arteries ↔️ Carry oxygenated blood away from the heart

  Veins ↔️ Carry deoxygenated blood towards the heart

  Capillaries ↔️ Facilitate gas exchange
• Arteries carry blood under high pressure due to their thick walls.

  True