Damage to the Sinoatrial Node in Humans

question 58

Multiple Choice

Damage to the sinoatrial node in humans

• A) is a major contributor to heart attacks.
• B) would block conductance between the bundle branches and the Purkinje fibers.
• C) would have a negative effect on peripheral resistance.
• D) would disrupt the rate and timing of cardiac muscle contractions.
• E) would have a direct effect on blood pressure monitors in the aorta.

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