The heart is in a double-layered membrane called the

50 to 60% of blood volume is made up of

The upper or receiving chamber of the heart, that pumps blood into the lower chambers prior to their contraction.

From the right ventricle, blood is pumped to the __________.

____________ occurs when the smooth muscles in the arterial walls relax and the diameter of the vessel enlarges.

This allows blood to flow from the lungs to the left atrium and prevents backflow from the left ventricle to the left atrium.

What is NOT a possible cause of edema?

Inflammation of a vein is known as

During soft tissue healing, _____ occurs to restore strength and function

When ____ happens, it causes blood pressure to rise.

What does not influence blood pressure?

What is NOT a function of pulmonary circulation?

Swelling, increasingly cold hands and feet, and pain are signs of

What is NOT a function of the cardiovascular system?

Allows blood to flow from the right atrium to the right ventricle.