Page 42 - Miracles in Our Bodies

Now let's make a more detailed exami-

nation of the process of digestion. Consider breathing,

swimming, riding a bicycle, eating… These are parts of

our everyday lives, yet most of the time we do not even

think how they occur. Our bodies need energy. We

have already explained that we obtain this energy

from the food we eat. But the nutriments re-
quired by the body should be simple and in par-

ticles small enough to pass through the blood

vessels. Otherwise they cannot permeate the

cells. However, the foods we consume are in large

pieces. Therefore, we need a machine to enable the

body to use the food we eat. In fact, we may briefly call

this a grinder, which basically reduces the food we eat to

smaller particles. This grinding machine in

your body is called the "digestive system".
This system, like all machine systems,

is composed of various components and

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