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The contraction phase of the cardiac cycle is called _______________.

The pressure of blood remaining in aorta during ventricular relaxation is close to ________.

(Refer to the diagram above FIG.4) Identify the wave labeled “2” .

Which of these proteins functions to transfer iron?

The time when all 4 valves of the heart are closed and ventricular blood volume does not change is called _________________.

Tetanic muscle contractions don’t occur in a normal cardiac muscle because ________. Note: Tetanic muscle contraction is common in skeletal muscle due to the triggering of multiple action potentials at a high frequency.

Cardiac reserve refers to the difference between the rate at which the heart pumps blood and its maximum capacity for pumping blood at any given time.

Due to a plateau in action potential, cardiac muscle cells have _________ than skeletal muscle cells.

The waste product bilirubin is produced from

Hemophilia is due to inherited deficiency of _________.