|
a
All muscles contain blood vessels that
branch into a fine network of tiny vessels called capillaries and
venules. The capillaries are responsible for supplying oxygen-rich blood
and nutrients to the tissues for energy, while the venules remove
de-oxygenated blood and waste products, such as carbon dioxide, from the
tissues.
The amount of blood required by a
contracting skeletal muscle depends on the intensity of the exercise
being performed. The blood supply needed for working muscles during a
maximum strength workout may be as much as 100 times greater than the
blood needed at rest.
Get your Bodybuilding Supplements at discounted price
|