18 Questions
What is the physiological-electrical axis of the heart?
Respiratory axis
Which axis is described as oriented inferiorly, anteriorly, and to the left?
Oblique axis
In the presence of hydrothorax or thickened pleura, what may be challenging during precordial percussion?
Percussing one border of the heart
Which axis of the heart experiences right and left rotation during respiration?
Respiratory axis
What is the significance of getting the axis going according to the text?
It leads to physiological movement
Why may an examiner find it difficult to define the right border of cardiac dullness?
Position behind the sternum
What type of movement is permitted during inspiration in terms of rotation?
Left rotation only
Why is only right rotation considered non-physiological?
It lacks balanced rotation to the left
What will cause circulatory problems, compression on coronary arteries, and veins?
Right ligamentous fixation
Which axis of the heart is associated with increased rotation to the left being more physiological?
Oblique axis
At what level does the AP axis of the heart lie?
4th rib on sternum
What point in acupuncture marks the electrical center of the heart?
Point of intersection of transverse and AP axes
During inspiration, which axis is associated with left rotation of the heart?
Transverse axis
Which anatomical axis is related to the longitudinal movement of the heart apex to the right during right lateral flexion?
Anteroposterior (AP) axis
In which movement does the heart verticalize, leading to mechanical extension?
Ante-flexion
Which axis is associated with the orientation of 5th ribs and their cartilages being oblique on the sternum?
Oblique axis
In which movement does the myocardial fibers of the heart form a complete spiral?
Left rotation
Which axis is responsible for the decrease in all diameters of the heart during contraction?
Vertical axis
Learn about the support of the diaphragm, vascular pedicle suspension, and superior ligamentous suspension impacting the heart axes during inspiration. This quiz covers the attachment of triangular or pulmonary ligament on the left side, allowing for left rotation.
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