The human muscular system is complex and has many functions in the body. These include mobility, stability, posture, circulation, digestion, and more. There are several different types of muscles ...

This schematic illustrates the organization of blood vessels and the regulation of blood flow (arrows) in the palm of the hands. Arteriole-venule shunts are small muscular valves that connect ...

Schematic of Pacific Walker Circulation Changes (IMAGE) Institute for Basic Science. Caption. Normal conditions (top), strengthening due to natural variability (middle) and weakening due to ...