Page 82 - For Men of Understanding

veins
superior
vena
cava aorta
right
pulmonary
artery pulmonary
vein body
right
pulmonary left pulmonary
vein vein
right atrium left atrium
semilunar valve
semilunar valve
atrioventricular
atrioventricular valve
valve
left ventricle
right ventricle
septum The heart has an excellent design based on
delicate balances, with its four chambers
inferior
vena pumping blood to different parts of the body
cava without mixing two different kinds of bloods one
with another, and its openings functioning as
apex safety valves.

minute. It rests only for half a second between each beat and it beats approx-
imately 100,000 times a day. When a human’s life span is considered, we would
come across a figure quite hard to calculate.
All the structures in the heart, which has an extremely delicate order in its
operation, are specially designed. In the heart, every detail has been consid-
ered: the deoxygenated and oxygenated blood’s not mixing with one another,
the regulation of body pressure, the operations required for the delivery of
nutrients to the whole body, and the systems that pump blood only as much
as needed. The heart is accordingly designed for all of the above.
In the heart, which is a wonder of design, exists a system so complex that
it could not by any means have been formed by coincidence. All of these fea-
tures present us their designer, that is, Allah, the Sustainer of all the worlds,
Who creates flawlessly and without an example.

A few features of the heart can be listed:
The heart is placed in one of the most protected places in the body:
By being placed in the rib-cage with a special design, the heart, one of the most
important organs, is very well protected against external blows.
Deoxygenated and oxygenated bloods never mix: In the heart, deoxy-
genated and oxygenated bloods are in constant motion. A special tissue divides
the heart into four chambers with different features. The upper part comprises
the right and the left atria, which are filling chambers. They pass the blood to
the ventricles below. Thanks to the delicate order here, the bloods never mix
with each other.
It regulates the blood pressure in such a way that it does no harm to
the organs: The heart works not like a single pump, but like two adjacent

80 For Men of Understanding