Name the characteristics of cardiac muscle tissue and cells.

define Cardiac muscle,

Describe the conditions at the sarcolemma of cardiac muscle cells at rest.

Explain how the heart rate, pulse period and pulse amplitude changed with exercise and why?

What tissue in the heart is responsible for setting the heart rate and stimulating the cardiac muscle to contract?

How does the cardiac contractile refractory period differ from a typical skeletal muscle refractory period?

How does a positive inotropic agent decrease the duration of cardiac muscle contraction?

Trace the flow of blood through the chambers and associated blood vessels of the heart.

Explain in detail how the blood flows through the heart.

Lucy is resting before her workout. Her heart is beating times 70 times per minute, and with each heartbeat, her ventricles are pumping 65 mL of blood. Calculate Lucy’s Cardiac Output.