Betty, 66 years old, is in great physical shape. she works out at the gym every day, and recently her doctor told her she is in exceptionally good health. betty is young in terms of her biological age, it is the condition of our system, tissues and cells that marks our physical aging.
What is the answers or is that what it gives you?
Valves are body structures with form of <span>thin membranes . They are attached to the heart wall and constantly open and close it to regulate blood flow. Besides the heart, other organs that have valves are: lungs, kidney, liver, pancreas,..
The function of the valves in the lunges is </span><span> to allow trapped air and fluids to flow past it, but blocks air from entering the diseased part of the </span>lung<span>.</span>
270 at birth but decreases to 206 by adulthood.
