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When hemoglobin is recycled, __________________.

A person’s blood type is determined largely by the

Cardiac output is increased by

The pressure that must be overcome before a semilunar valve can open for blood ejection is called __________.

Formed elements make up about what percentage of blood?

The extrinsic pathway of blood clotting is activated by the _________.

The long plateau phase of the cardiac muscle action potential is due to ________

Which of the following plasma proteins plays a role in blood clotting?

Which of the following is in correct order?

_____________ is the most superficial layer enclosing the heart.