There are three types of blood vessel: arteries, veins and capillaries. The heart is a muscular organ that pumps blood around your circulatory system. The circulatory system is the heart and all ...

Circulatory system: Blood vessels Laid end-to-end, an adult's arteries, veins and capillaries would stretch for about 100,000 miles - enough to wrap around the world nearly four times.

The common trunk of the right subclavian and the right common carotid is called the brachiocephalic artery. These changes resulted from the changes from gill to lung respiration, change from aquatic ...