Page 99 - The Miracle of Electricity in the Body

Adnan Oktar (Harun Yahya) 97

a page. But when you pull your fingers down, there is another joint in the
line of action, the wrist. Why isn’t that pulled down along with the fingers?
Now feel the outer, hairy side of your arm just below the elbow. Feel the
other muscles at work there. They get the command to apply just the cor-
rect force to hold the wrist steady when your brain says bend fingers only,
and they allow the wrist to bend when the cranial message is: wrist also in
action. But we never think of it because it’s all controlled at the less-than-
conscious level. 62

Thanks to tension receptors on the muscles, such actions as run-
ning, walking, opening a door or climbing stairs can be carried out in a
smooth, coordinated manner. These receptors keep the nervous system
constantly informed, giving the brain feedback about the status of the
muscles, and the degree and speed of their contraction. Close monitor-
ing and co-ordination of muscular activities is ensured, and as a result,
you can walk along without stumbling, climb up and down stairs with-
out falling, and lift your spoon to your mouth without your hand shak-
ing. All these actions are made possible by the will of God, thanks to the
flawless order of the functioning inside the body.
The Originator of the heavens and Earth. When He decides on some-
thing, He just says to it, “Be!” And it is. (Surat al-Baqara, 117)

How Do Muscles Contract?

For any contraction to begin, muscle fibers must be stimulated. The
mechanical energy that emerges as a result contraction is provided from
the muscle’s resources chemical energy. Therefore, the work that the
muscle must do depends on its chemical energy being translated into
mechanical energy.
Muscles are like biological machines that turn chemical energy into
mechanical power. However, the functioning of these machines— in
other words, our ability to move—requires energy. Glucose in the blood
provides the necessary energy, just like the fuel that makes an engine
work.
The body obtains this energy needed for muscle movement from
the food we eat. Digested carbohydrates, fats and proteins reach the