You remember how Dorothy, Toto, and the rest of the gang were trying to make their way to see the Wizard of Oz? That’s kind of how veins work in relation to your heart. Your heart is the wizard, and ...

Your circulatory system works all day, every day, to pump oxygen throughout your body. There are cardiovascular conditions that can impact this system. Your circulatory system, also known as your ...

Cardiac muscle tissue is only found in your heart. It performs involuntary, coordinated contractions that allow your heart to pump blood through your circulatory system. Cardiac muscle tissue is one ...

With aging there are changes in the cardiovascular system, which result in alterations in cardiovascular physiology. The changes in cardiovascular physiology must be differentiated from the effects of ...

POTS (Postural Orthostatic Tachycardia Syndrome) represents a mechanical failure of blood flow, distinct from standard heart ...