Circulatory System Quiz
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Questions and Answers

What is the function of the tricuspid valve?

  • Transports deoxygenated blood to the lungs.
  • Prevents back flow of blood to the right atrium from the right ventricle. (correct)
  • Controls the passage of blood from the left ventricle to the aorta.
  • Carries oxygenated blood away from the left side of the heart.

    • Which of the following statements about the aorta is true?

  • It carries blood away from the left side of the heart to the body tissues. (correct)
  • It brings oxygenated blood to the lungs.
  • It carries blood from the right ventricle to the pulmonary arteries.
  • It transports deoxygenated blood to the upper body.

    • During which phase does the heart undergo systole?

  • When the heart valves are closed.
  • When the heart chambers fill with blood.
  • When the heart pushes blood out. (correct)
  • When the heart chambers relax.

    • What is the primary function of the right side of the heart?

    <p>Pumping blood to the lungs</p> Signup and view all the answers

    What type of blood does the pulmonary artery transport?

    <p>Deoxygenated blood from the right side of the heart.</p> Signup and view all the answers

    Which chamber of the heart has thicker muscles?

    <p>Left ventricle</p> Signup and view all the answers

    Which valve prevents back flow of blood to the left atrium?

    <p>Bicuspid Valve</p> Signup and view all the answers

    What tissue types make up the heart?

    <p>Cardiac muscle, nerve, and connective tissue</p> Signup and view all the answers

    What separates the right and left sides of the heart?

    <p>Septum</p> Signup and view all the answers

    How does the heart rate vary?

    <p>It can change due to activity, stress, temperature, and health</p> Signup and view all the answers

    What is the primary function of vasodilation in the circulatory system?

    <p>To reduce blood pressure</p> Signup and view all the answers

    How is blood pressure calculated?

    <p>Systolic pressure - diastolic pressure</p> Signup and view all the answers

    What condition is characterized by a bulge in an artery due to a weakened wall?

    <p>Aneurysm</p> Signup and view all the answers

    Which of the following medications is NOT commonly used to treat arteriosclerosis?

    <p>Insulin</p> Signup and view all the answers

    What is the primary cause of ischemic stroke?

    <p>Blood clot blocking blood flow</p> Signup and view all the answers

    What characterizes arrhythmia?

    <p>Irregular heartbeat rhythm</p> Signup and view all the answers

    What is the main goal of coronary bypass surgery?

    <p>To reroute blood flow around blocked arteries</p> Signup and view all the answers

    What is a major risk factor for developing arteriosclerosis?

    <p>High-fat diet</p> Signup and view all the answers

    What is the primary function of the right ventricle?

    <p>Pumps blood to the lungs to receive oxygen</p> Signup and view all the answers

    Which of the following describes the function of the atria?

    <p>Receive blood and fill the ventricles</p> Signup and view all the answers

    Why do the walls of the left ventricle need to be thicker than the right ventricle?

    <p>It needs to create more force to pump blood throughout the body</p> Signup and view all the answers

    What is the primary function of arteries?

    <p>Carry blood away from the heart</p> Signup and view all the answers

    Which type of blood vessel is primarily responsible for nutrient and waste exchange?

    <p>Capillaries</p> Signup and view all the answers

    What distinguishes arterioles from arteries?

    <p>Arterioles are smaller and carry blood to the capillaries.</p> Signup and view all the answers

    What is the main function of venules?

    <p>To carry blood back to veins</p> Signup and view all the answers

    What occurs during vasodilation?

    <p>Widening of blood vessels</p> Signup and view all the answers

    Which layer forms the inner lining of blood vessels?

    <p>Endothelium</p> Signup and view all the answers

    What type of blood vessel has the widest diameter and contains valves?

    <p>Veins</p> Signup and view all the answers

    Where does oxygenated blood from the lungs enter the heart?

    <p>Left atrium</p> Signup and view all the answers

    Which blood type is known as the universal recipient?

    <p>Type AB</p> Signup and view all the answers

    What is the rarest blood type?

    <p>AB-negative</p> Signup and view all the answers

    What condition is characterized by a deficiency in hemoglobin or red blood cells?

    <p>Anemia</p> Signup and view all the answers

    Which blood type can donate to type A without any issues?

    <p>Type O</p> Signup and view all the answers

    What causes Sickle Cell Anemia?

    <p>Improper shape of red blood cells</p> Signup and view all the answers

    What is one of the main functions of the circulatory system?

    <p>Carries nutrients to cells</p> Signup and view all the answers

    What percentage of blood volume is made up of plasma?

    <p>55%</p> Signup and view all the answers

    Which type of blood cell is primarily responsible for defending the body against infections?

    <p>Leukocytes</p> Signup and view all the answers

    What is the main function of erythrocytes?

    <p>Transport oxygen</p> Signup and view all the answers

    How long do red blood cells typically live?

    <p>120 days</p> Signup and view all the answers

    What type of circulatory system maintains blood within vessels at all times?

    <p>Closed circulatory system</p> Signup and view all the answers

    Which component of blood aids in the clotting process?

    <p>Platelets</p> Signup and view all the answers

    What is the primary characteristic of leukocytes compared to erythrocytes?

    <p>They have a nucleus</p> Signup and view all the answers

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