Page 211 - The Miracle of the Blood and Heart

CO 2 Tissue cells
O 2
Superior vena cava

Pulmonary artery
Systemic
capillaries
CO 2
CO 2
Right Pulmonary
atrium capillaries

O 2 O 2
Lung Lung
Left
Pulmonary ventricle Left atrium
veins Right
ventricle
Tissue cells Aorta
O 2
CO 2
Inferior
vena cava
Systemic
capillaries

A red blood cell begins its journey in the left atrium. It then travels through the
whole body, from the toes to the brain, by way of blood vessels and capillaries
measured in mere millimeters. It deposits oxygen at the tissues and takes up car-
bon dioxide, enabling it to be given off by the lungs when it completes its journey.

the heart consist of three layers. First, there is an outer casing
consisting of fibrous connective tissue, whose presence is of
the greatest importance. The elastic fibers in it provide resis-
tance against pressure. If the arteries lacked this property, then
the blood arriving from the heart under high pressure
would inevitably damage, even tear them. This particu-
lar feature exhibited by God in this important artery
is another manifestation of His title of "He Who cre-
Adnan
Oktar

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