Cardiovascular System 2.1 - Circulation
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Questions and Answers

What is the term for the cyclical pattern of heart contractions and relaxations?

  • Cardiac cycle (correct)
  • Cardiac contraction
  • Cardiac relaxation
  • Cardiac rhythm

    • During which phase of the cardiac cycle does the ventricle contract?

  • Diastole
  • Ventricular relaxation
  • Atrial contraction
  • Systole (correct)

    • What is the characteristic of blood pressure during systole?

  • No pressure
  • Variable pressure
  • Low pressure
  • High pressure (correct)

    • What happens to the ventricles during diastole?

    <p>They relax</p> Signup and view all the answers

    What is the term for the active contraction of ventricles?

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

    The cardiac cycle is a pattern of heart contractions and relaxations that occurs in a random sequence.

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

    During systole, the ventricles fill with blood from the atria.

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

    The pressure in the ventricles is low during systole.

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

    Diastole is the phase of the cardiac cycle where the ventricles actively contract.

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

    The atria fill with blood during systole.

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

    The cardiac cycle is a pattern of heart contractions and relaxations that occurs in a constant sequence.

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

    During diastole, the ventricles empty into the aorta and pulmonary arteries.

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

    The phase of the cardiac cycle characterized by ventricular relaxation is called systole.

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

    The heart contracts and relaxes in a cyclical pattern in response to mechanical changes within the cells.

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

    Blood pressure is high during diastole.

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

    What is the purpose of maintaining blood pressure within an ideal range?

    <p>To prevent organ damage and ensure sufficient blood supply to organs</p> Signup and view all the answers

    What happens to blood pressure during systole?

    <p>It increases</p> Signup and view all the answers

    What is the consequence of blood pressure being too low?

    <p>Inadequate blood supply to organs</p> Signup and view all the answers

    What is the term for the ventricular relaxation phase of the cardiac cycle?

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

    What is the result of high blood pressure?

    <p>Organ damage</p> Signup and view all the answers

    What system helps maintain blood pressure within the ideal range?

    <p>Nervous detection and hormonal response</p> Signup and view all the answers

    The heart contracts and relaxes in a cyclical pattern in response to ______ changes within the cells.

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

    The ______ contraction of ventricles is called systole.

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

    If the blood pressure is too high, it can cause ______ to the tissues.

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

    If the blood pressure is too low, it won't supply the organs with enough ______ or oxygen.

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

    The ______ of ventricles from the atria occurs during diastole.

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

    High blood pressure is also known as ______.

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

    Match the following phases of the cardiac cycle with their characteristics:

    <p>Systole = Ventricular contraction and high pressure Diastole = Ventricular relaxation and low pressure Ventricular filling = Filling of ventricles from the atria Ventricular emptying = Emptying of ventricles into the aorta and pulmonary arteries</p> Signup and view all the answers

    Match the following terms with their definitions:

    <p>Hypertension = High blood pressure Hypotension = Low blood pressure Systole = Ventricular contraction Diastole = Ventricular relaxation</p> Signup and view all the answers

    Match the following consequences with the corresponding blood pressure condition:

    <p>Organ damage and tissue damage = High blood pressure Not enough oxygen or nutrients supplied to the tissue = Low blood pressure Cell death = High blood pressure Tissue waste products build up = Low blood pressure</p> Signup and view all the answers

    Match the following statements with the correct phase of the cardiac cycle:

    <p>The ventricles contract = Systole The ventricles fill with blood from the atria = Diastole The ventricles empty into the aorta and pulmonary arteries = Systole The ventricles relax = Diastole</p> Signup and view all the answers

    Match the following systems with their functions in maintaining blood pressure:

    <p>Stretch receptors in blood vessels = Detecting blood pressure changes Nervous detection and response = Responding to blood pressure changes Hormonal system = Regulating blood pressure Cardiac cycle = Maintaining blood pressure within a range</p> Signup and view all the answers

    Match the following phrases with their corresponding descriptions:

    <p>ACT SYSTematically = Remembering systole as active contraction DIA PASSIVEly = Remembering diastole as passive relaxation Cardiac cycle = Cyclical pattern of heart contractions and relaxations Ideal range = Range of blood pressure to prevent damage</p> Signup and view all the answers

    Match the following phases of the cardiac cycle with their characteristics:

    <p>Systole = Ventricular relaxation and low blood pressure Diastole = Ventricular contraction and high blood pressure</p> Signup and view all the answers

    Match the following blood pressure conditions with their consequences:

    <p>Hypertension = Insufficient oxygen/nutrient supply to tissues Hypotension = Organ damage and tissue damage</p> Signup and view all the answers

    Match the following systems with their functions in maintaining blood pressure:

    <p>Stretch receptors = Detecting changes in blood pressure Nervous system = Responding to changes in blood pressure Hormonal system = Regulating blood pressure Immune system = Responding to changes in blood pressure</p> Signup and view all the answers

    Match the following descriptions with the correct phase of the cardiac cycle:

    <p>Ventricles fill with blood from the atria = Diastole Ventricles contract and empty into the aorta/pulmonary arteries = Systole Ventricles relax and contract simultaneously = Neither Ventricles stop functioning = Neither</p> Signup and view all the answers

    Match the following terms with their definitions:

    <p>Cardiac cycle = Random pattern of heart contractions and relaxations Systole = Ventricular contraction Diastole = Ventricular relaxation</p> Signup and view all the answers

    Match the following characteristics with the correct phase of the cardiac cycle:

    <p>Active ventricular contraction = Systole Passive ventricular relaxation = Diastole Active atrial contraction = Systole Passive ventricular contraction = Diastole</p> Signup and view all the answers

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