Each 2.54 square centimetre (a square inch) of human skin has six metres (20ft) of blood vessels. Veins hold about 65 per cent of the body's blood and have one-way valves tohelp blood move.

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 ...

Very low blood pressure. The structure of the blood vessels can be easily compared when they are seen in this cross-section (not to scale).

the lymphatic system. Considerable adaptability built into vertebrate circulatory systems: Considerable variation in blood vessels, as seen in shark Due to developmental origin of blood vessels: many ...

However, these so-called static models fail to reproduce what occurs in vivo since they lack a key component of the circulatory system: the physical forces exerted by blood flowing through the blood ...

Now scientists are gaining ground in tissue engineering that could help a host of people who deal with circulatory-system ...

Discover the hidden dangers of internal bleeding, from subtle warning signs to life-saving treatments. Learn how to spot this ...

Locate the rest of the vessels listed in Table 1 and shown in Figure 5.3. Functional anatomy of circulatory and respiratory system is important. Think carefully about relation between circulation and ...

its exact role in the endothelial cells that make up the circulatory system, the formation of new blood vessels (angiogenesis) and vascular function was not yet known. "The study reveals for the ...