Your circulatory system contains three blood vessel types: arteries, veins, and capillaries. Arteries carry blood from the heart, unlike veins, which carry blood to the heart. According to the ...

Medically reviewed by Jeffrey S. Lander, MDMedically reviewed by Jeffrey S. Lander, MD The cardiovascular system, also known as the circulatory system, includes the heart and blood vessels. It plays ...

The heart beats around 100,000 times a day, pumping approximately 8 pints of blood throughout the body 24/7.This delivers oxygen- and nutrient-rich blood to tissues and organs and carries away waste.

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 ...