Multiple Choice
What is the normal sequence of the spread of cardiac excitation
A) SA node, atria, AV node, bundle of His, Purkinje fibres, ventricular myocardium
B) Atria, SA node, AV node, Purkinje fibres, bundle of His, ventricular myocardium
C) SA node, atria, AV node, Purkinje fibres, bundle of His, ventricular myocardium
D) AV node, SA node, Atria, Purkinje fibres, bundle of His, ventricular myocardium
Correct Answer:

Verified
Correct Answer:
Verified
Q31: Stroke volume can vary by alterations in
Q39: Match the term, labelled <br>Match the term,
Q40: Match the factor involved in the initiation
Q43: Cardiac tetany never occurs under normal conditions
Q47: On an electrocardiogram, what represents depolarization of
Q48: Which structures join adjacent cardiac muscle cells
Q49: Which of the following actions produces the
Q74: An increase in cardiac sympathetic activity _
Q143: The rate of appearance of the QRS
Q234: An increase in parasympathetic activity _ the