Anatomy of the Diaphragm and Heart Axes
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Questions and Answers

What is the physiological-electrical axis of the heart?

  • Oblique axis
  • Respiratory axis (correct)
  • Longitudinal axis
  • Axis of anatomical rotation
  • Which axis is described as oriented inferiorly, anteriorly, and to the left?

  • Longitudinal axis
  • Axis of anatomical rotation
  • Oblique axis (correct)
  • Respiratory axis
  • In the presence of hydrothorax or thickened pleura, what may be challenging during precordial percussion?

  • Defining the cardiac borders
  • Percussing the left border of cardiac dullness
  • Percussing one border of the heart (correct)
  • Percussing the right hemithorax
  • Which axis of the heart experiences right and left rotation during respiration?

    <p>Respiratory axis</p> Signup and view all the answers

    What is the significance of getting the axis going according to the text?

    <p>It leads to physiological movement</p> Signup and view all the answers

    Why may an examiner find it difficult to define the right border of cardiac dullness?

    <p>Position behind the sternum</p> Signup and view all the answers

    What type of movement is permitted during inspiration in terms of rotation?

    <p>Left rotation only</p> Signup and view all the answers

    Why is only right rotation considered non-physiological?

    <p>It lacks balanced rotation to the left</p> Signup and view all the answers

    What will cause circulatory problems, compression on coronary arteries, and veins?

    <p>Right ligamentous fixation</p> Signup and view all the answers

    Which axis of the heart is associated with increased rotation to the left being more physiological?

    <p>Oblique axis</p> Signup and view all the answers

    At what level does the AP axis of the heart lie?

    <p>4th rib on sternum</p> Signup and view all the answers

    What point in acupuncture marks the electrical center of the heart?

    <p>Point of intersection of transverse and AP axes</p> Signup and view all the answers

    During inspiration, which axis is associated with left rotation of the heart?

    <p>Transverse axis</p> Signup and view all the answers

    Which anatomical axis is related to the longitudinal movement of the heart apex to the right during right lateral flexion?

    <p>Anteroposterior (AP) axis</p> Signup and view all the answers

    In which movement does the heart verticalize, leading to mechanical extension?

    <p>Ante-flexion</p> Signup and view all the answers

    Which axis is associated with the orientation of 5th ribs and their cartilages being oblique on the sternum?

    <p>Oblique axis</p> Signup and view all the answers

    In which movement does the myocardial fibers of the heart form a complete spiral?

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

    Which axis is responsible for the decrease in all diameters of the heart during contraction?

    <p>Vertical axis</p> Signup and view all the answers

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