2.2.2 The Heart and Blood Vessels

    Cards (55)

    • The heart is a muscular organ that pumps blood around the body.
    • Which chamber pumps deoxygenated blood to the lungs?
      Right ventricle
    • What type of blood does the pulmonary artery carry?
      Deoxygenated blood
    • Match the valve with its function:
      Tricuspid valve ↔️ Prevents backflow from right ventricle to right atrium
      Pulmonary valve ↔️ Prevents backflow from pulmonary artery to right ventricle
      Mitral valve ↔️ Prevents backflow from left ventricle to left atrium
      Aortic valve ↔️ Prevents backflow from aorta to left ventricle
    • Capillaries have very thin walls to facilitate gas exchange.
      True
    • Veins contain valves to prevent blood backflow
    • Which chamber receives deoxygenated blood from the body?
      Right atrium
    • What is the function of the right atrium?
      Receives deoxygenated blood
    • Summarize the pathway of blood through the heart.
      1️⃣ Deoxygenated blood enters the right atrium.
      2️⃣ Deoxygenated blood flows into the right ventricle and is pumped to the lungs via the pulmonary artery.
      3️⃣ Oxygenated blood returns from the lungs to the left atrium.
      4️⃣ Oxygenated blood flows into the left ventricle and is pumped to the body via the aorta.
    • What do veins contain to prevent backflow of blood?
      Valves
    • Arteries have thick, elastic walls to withstand high pressure.
      True
    • Arrange the steps of blood flow through the heart in the correct order:
      1️⃣ Deoxygenated blood enters the right atrium
      2️⃣ Blood flows to the right ventricle
      3️⃣ Blood is pumped to the lungs via the pulmonary artery
      4️⃣ Oxygenated blood enters the left atrium
      5️⃣ Blood flows to the left ventricle
      6️⃣ Blood is pumped to the body via the aorta
    • Key valves in the heart ensure blood flows in one direction
    • Arteries carry oxygenated blood away from the heart
    • Veins contain valves to prevent blood backflow
    • The heart has four main chambers.

      True
    • Valves in the heart ensure blood flows in one direction.

      True
    • The right atrium receives deoxygenated blood from the body through veins.
    • What type of blood vessels carry oxygenated blood away from the heart?
      Arteries
    • What is the primary function of capillaries?
      Gas exchange in tissues
    • Match the type of blood vessel with its key feature:
      Arteries ↔️ Thick, elastic walls
      Veins ↔️ Valves to prevent backflow
      Capillaries ↔️ Very thin walls for diffusion
    • The left atrium receives oxygenated blood from the lungs.

      True
    • The right ventricle pumps blood to the lungs via the pulmonary artery.

      True
    • Arteries expand and contract to accommodate changes in blood volume and pressure.

      True
    • Capillaries have the smallest diameter and simplest structure compared to arteries and veins.

      True
    • Capillaries have the largest diameter among blood vessels.
      False
    • What ensures the one-way flow of blood in the heart?
      Valves
    • Order the pathway of blood through the heart:
      1️⃣ Right Atrium
      2️⃣ Right Ventricle
      3️⃣ Pulmonary Artery
      4️⃣ Lungs
      5️⃣ Left Atrium
      6️⃣ Left Ventricle
      7️⃣ Aorta
    • Arteries have thick, elastic walls to withstand the high pressure of blood pumped from the left ventricle.
    • What is the primary function of veins in the circulatory system?
      Return deoxygenated blood
    • What type of blood do arteries carry?
      Oxygenated blood
    • Order the steps of blood flow through the circulatory system:
      1️⃣ Blood returns to the heart through veins
      2️⃣ Blood is pumped out through arteries
      3️⃣ Blood flows through capillaries for exchange
      4️⃣ Deoxygenated blood returns to veins
    • Capillaries have the thickest walls among blood vessels.
      False
    • White blood cells defend the body against pathogens.

      True
    • The right atrium receives deoxygenated blood from the body
    • What type of blood flows into the right atrium?
      Deoxygenated
    • What are the walls of arteries composed of?
      Smooth muscle and connective tissue
    • What is the primary characteristic of capillaries that allows for gas exchange?
      Thin walls
    • The thin walls of capillaries allow for efficient gas exchange between blood and tissues.
    • Match the heart chamber with its function:
      Right Atrium ↔️ Receives deoxygenated blood from the body
      Right Ventricle ↔️ Pumps deoxygenated blood to the lungs
      Left Atrium ↔️ Receives oxygenated blood from the lungs
      Left Ventricle ↔️ Pumps oxygenated blood to the body