Reply To: Week 5 – Discussion Board 1

Welcome To Interpreters Associates, Inc. Forums Week 5 – Discussion Board 1 Reply To: Week 5 – Discussion Board 1

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Sara Abbasova # Posted on October 10, 2022 at 1:55 pm

The circulatory system is composed of three separate independent systems that work together: the cardiovascular, systemic, and pulmonary. The primary responsibility is to deliver blood, nutrients, oxygen, and hormones around the body (to and from cells). The arteries and the veins are part of the systemic system of the circulatory system. The arteries are usually depicted as red in diagrams and they carry oxygenated blood from the heart and throughout the body. Veins are usually depicted as blue, and they carry deoxygenated blood toward the heart. Arteries have thick walls made up of muscle tissue, whereas veins have thinner walls and they use valves to keep the blood flowing.

The heart is composed of four chambers, two atria, and two ventricles. The right and the left atria receive the incoming blood through the superior vena cava; the right and left ventricles are more muscular and they pump out blood to the heart. The heart valves act as gates at the chamber openings that keep the blood flowing in the correct direction: Superior/Inferior Vena Cava -> Tricuspid Valve -> Right Ventricle -> Pulmonary valve -> Pulmonary Artery -> Lungs -> Left Atrium -> Left Ventricle -> Aorta -> Rest of the body.
The right atrium receives deoxygenated blood from the body and pumps it to the right ventricle. The right ventricle pumps deoxygenated blood to the lungs. The left atrium receives oxygenated blood from the lungs and pumps it to the left ventricle which then pumps the blood back to the body. All chambers and valves work together simultaneously to ensure the proper blood flow in the heart and the rest of the body.