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Circulatory System Quiz
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Circulatory System Quiz

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Questions and Answers

Which system is the circulatory system made up of?

  • Cardiovascular and lymphatic systems (correct)
  • Respiratory and nervous systems
  • Digestive and endocrine systems
  • Muscular and skeletal systems

    • Which circulation is responsible for carrying blood from the right side of the heart to the lungs and back to the left side of the heart?

  • Coronary circulation
  • Pulmonary circulation (correct)
  • Systemic circulation
  • Lymphatic circulation

    • Which layer of the heart is continuous with the endothelium of blood vessels connecting with the heart?

  • Epicardium
  • Myocardium
  • Pericardium
  • Endocardium (correct)

    • Which layer of the blood vessel is responsible for contracting and relaxing to regulate blood flow?

    <p>Tunica media</p> Signup and view all the answers

    What is the purpose of anastomoses in the circulatory system?

    <p>To provide alternative routes for blood flow in case of arterial occlusion</p> Signup and view all the answers

    What is the result of an untreated occlusion of an end artery?

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

    What is the function of the skeletal muscle pump in venous return?

    <p>To pump venous blood back towards the heart</p> Signup and view all the answers

    Which system is the cardiovascular system made up of?

    <p>The arterial system, the heart, and the venous system</p> Signup and view all the answers

    What is the outermost layer of the heart called?

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

    Which circulation is responsible for carrying blood from the left side of the heart to the capillary beds of organs and tissues?

    <p>Systemic circulation</p> Signup and view all the answers

    Where does the electrical impulse start in the heart?

    <p>SA node</p> Signup and view all the answers

    Which layer of the heart is continuous with the endothelium of blood vessels connecting with the heart?

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

    Which part of the heart contracts when the electrical impulse reaches the AV node?

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

    What is the middle layer of the heart called?

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

    Which circulation is responsible for carrying blood from the right side of the heart to the lungs and back to the left side of the heart?

    <p>Pulmonary circulation</p> Signup and view all the answers

    What is the innermost layer of the heart called?

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

    Where does the electrical impulse travel after reaching the AV node?

    <p>Left and right bundles in the IV septum</p> Signup and view all the answers

    Which layer of the blood vessel is responsible for contracting and relaxing to regulate blood flow?

    <p>Tunica media</p> Signup and view all the answers

    What is the result of an untreated occlusion of an end artery?

    <p>Irreversible cell death</p> Signup and view all the answers

    What is the purpose of anastomoses in the circulatory system?

    <p>To provide alternative routes for blood flow</p> Signup and view all the answers

    Which system is the circulatory system made up of?

    <p>Cardiovascular system</p> Signup and view all the answers

    What is the function of the skeletal muscle pump in venous return?

    <p>To pump venous blood back towards the heart</p> Signup and view all the answers

    Which circulation is responsible for carrying blood from the right side of the heart to the lungs and back to the left side of the heart?

    <p>Pulmonary circulation</p> Signup and view all the answers

    What is the function of the lymphatic capillaries?

    <p>To collect tissue fluid</p> Signup and view all the answers

    What is the purpose of the hepatic portal venous system?

    <p>To clean venous blood from the GI tract</p> Signup and view all the answers

    How does the sympathetic tone affect arterioles?

    <p>It causes low level contraction</p> Signup and view all the answers

    What are the three main components of the cardiovascular system?

    <p>The three main components of the cardiovascular system are the arterial system, the heart, and the venous system.</p> Signup and view all the answers

    What are the three layers of the heart?

    <p>The three layers of the heart are the epicardium (external), myocardium (middle), and endocardium (internal).</p> Signup and view all the answers

    Describe the conduction system of the heart.

    <p>The conduction system of the heart starts with an electrical impulse at the SA node, which causes the atria to contract. The impulse then travels to the AV node at the AV septum, and then down the left and right bundles in the IV septum.</p> Signup and view all the answers

    What is the function of the sympathetic tone in the circulatory system?

    <p>The sympathetic tone causes low-level contraction of smooth muscle in arterioles, regulating blood flow.</p> Signup and view all the answers

    What is the function of the lymphatic capillaries?

    <p>The function of the lymphatic capillaries is to collect tissue fluid (lymph) and return it to the circulatory system.</p> Signup and view all the answers

    What are the three main components of the cardiovascular system?

    <p>The three main components of the cardiovascular system are the heart, blood vessels, and blood.</p> Signup and view all the answers

    What is an anastomosis in the circulatory system?

    <p>An anastomosis is a connection between two arteries that allows for alternative routes of blood flow in case of arterial occlusion.</p> Signup and view all the answers

    What is the purpose of the hepatic portal venous system?

    <p>The purpose of the hepatic portal venous system is to drain venous blood from the absorptive parts of the gastrointestinal tract and associated organs for cleaning by the liver.</p> Signup and view all the answers

    What is the result of an untreated occlusion of an end artery?

    <p>The result of an untreated occlusion of an end artery is irreversible cell death (infarction) due to hypoxia caused by loss of arterial blood supply.</p> Signup and view all the answers

    Study Notes

    Circulatory System Composition

    • The circulatory system is made up of the heart, blood vessels, and blood.

    Heart Anatomy

    • The outermost layer of the heart is called the epicardium.
    • The middle layer of the heart is called the myocardium.
    • The innermost layer of the heart is called the endocardium.

    Circulations

    • The pulmonary circulation is responsible for carrying blood from the right side of the heart to the lungs and back to the left side of the heart.
    • The systemic circulation is responsible for carrying blood from the left side of the heart to the capillary beds of organs and tissues.

    Conduction System

    • The electrical impulse starts in the sinoatrial (SA) node.
    • The electrical impulse travels through the atrioventricular (AV) node.
    • When the electrical impulse reaches the AV node, the atrioventricular bundle contracts.

    Blood Vessels

    • The tunica media is the layer of the blood vessel responsible for contracting and relaxing to regulate blood flow.

    Anastomoses

    • Anastomoses are connections between blood vessels that allow for collateral circulation.
    • The purpose of anastomoses in the circulatory system is to provide an alternative route for blood flow in case of blockage.

    Blood Flow Regulation

    • The sympathetic tone causes arterioles to constrict, increasing blood pressure.

    Cardiovascular System

    • The cardiovascular system is made up of the heart, blood vessels, and blood.

    Lymphatic System

    • Lymphatic capillaries are responsible for the uptake of interstitial fluid and proteins.
    • The purpose of the hepatic portal venous system is to deliver nutrient-rich blood from the digestive system to the liver for processing.

    Venous Return

    • The skeletal muscle pump plays a crucial role in venous return by contracting and relaxing to push blood back towards the heart.

    Occlusion of End Artery

    • The result of an untreated occlusion of an end artery is tissue death due to lack of oxygen and nutrients.

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    Related Documents

    Introduction to the Circulatory System.pdf

    Description

    Test your knowledge on the circulatory system with this introductory quiz. Learn key definitions and understand the components of the cardiovascular system and the lymphatic system. Explore the functions of the heart and the pathways of pulmonary and systemic circulation. Challenge yourself and expand your understanding of this vital bodily system.

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