The circulatory system consists of one heart, five liters of blood, and approximately 96,000 kilometers of blood vessels, ...

Your daily habits impact blood flow more than you realize. Learn how small changes in movement, hydration, and sleep can ...

The heart is a muscular organ that pumps blood around your circulatory system. The circulatory system is the heart and all the blood vessels in the body which carry cells and substances to all its ...

Veins between two capillary networks are portal systems. Closed circulatory system, but fluid constituents of blood leak out of capillaries and return to the heart by the second component of the ...

“One big difference is that whales are often traveling thousands of miles across ocean basins–great whales undertake the ...

Start with dorsal aorta, formed by 4 pairs of efferent branchial arteries. Within the pleuroperitoneal cavity, it gives off a series of abdominal branches. Locate each of the paired and unpaired ...

New genetic links have been discovered between genetically predicted height and an individual's likelihood of developing a ...