Indicate Which Type of Muscle Is Associated with the Property

question 138

Multiple Choice

Indicate which type of muscle is associated with the property in question by writing the appropriate letter in the blank using the answer code below:
-Has a clear-cut length-tension relationship.

• A)skeletal muscle only
• B)single-unit smooth muscle only
• C)cardiac muscle only
• D)skeletal muscle and cardiac muscle
• E)skeletal muscle and single-unit smooth muscle
• F)single-unit smooth muscle and cardiac muscle
• G)skeletal, single-unit smooth, and cardiac muscles

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Definitions:

AV Node

AV Node (Atrioventricular Node) is a component of the heart's electrical system that delays the transmission of electrical impulses to the ventricles to ensure proper timing of heart contractions.

P Wave

The initial wave on an electrocardiogram representing atrial depolarization, or the electrical activity that triggers atrial contraction.

QRS Complex

A series of deflections in an electrocardiogram representing the electrical activity associated with the ventricular contraction.

Ventricular Contraction

The phase of the cardiac cycle where the ventricles contract, pumping blood out of the heart into the pulmonary and systemic circuits.