Growth of green technologies such as smart grid electricity services, online energy management, and consumer-generated energy are forces that would be identified through an environmental scan.  

The human body has only one ___ but has two of each of the rest of these vessels.

Since athletes are in better than average condition, their hearts beat faster at rest.

The internal ridges in the atria are called _____, while the internal ridges in the ventricles are called _____.

The two common iliac veins form the

The phagocytic antigen-presenting cells belong to the ________ group.

The blood vessel that supplies venous blood to the liver is the

In the cardiovascular system, the _____ circuit carries blood to and from the lungs, which is served by the _____ side of the heart.

The blood vessel that supplies blood to the brain from the anterior direction is the ________ artery.

Microglia are to the CNS as Kupffer cells are to the