Blood Flow Through The Human Body
Amber N Culpepper
April 30, 2014
This paper is submitted in partial fullfillment of the Associate of Science degree in the Medical Assisting program at Southern Technical College The heart is made up of four chambers the Right Atrium, Left Atrium, Right Ventricle &
Left Ventricle. Blood flows a particular path through the human body. It moves through
the Pulmonary Circulation which is circulation to the lungs and continues through
Systemic Circulation which is circulation to the rest of the body.
This Two part system’s purpose is to bring oxygen bearing blood to all the tissues of the
During Pulmonary Circulation blood circulates to and from the lungs to release
carbon dioxide and pick up new oxygen. The veins bring waste rich blood back to the
heart entering the Right Atrium through out two large veins Inferior and Superior Vena
Cava. The Right Atrium fills with waste rich blood and contracts pushing blood out
through a one way valve into the right ventricle. These one way valves are to prevent
Any backflow of blood. The ventricle fills and contracts pushing blood into the
Pulmonary Artery leading to the lungs.
Systemic Circulation is a major part of the overall circulatory system the blood vessels
(arteries, veins, & capillaries) are responsible for the delivery of oxygen and nutrients to
the tissue. Oxygen rich blood enters the blood vessels through the hearts main artery
called the Aorta, forceful contraction of the left ventricle forces blood into the Aorta
which branches off into smaller arteries that run throughout the body. The inside layer of
an artery is smooth allowing blood to flow quickly, the outside is very strong so blood
can flow forcefully. Oxygen rich blood enters through capillaries...
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