The Heart research paper.doc - The Heart Dr Pham Physiology Research paper Running head The Heart Abstract The heart is a muscular organ roughly the

The Heart research paper.doc - The Heart Dr Pham Physiology...

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The Heart Dr. Pham Physiology November 27, 2016 Research paper
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Running head: The Heart Abstract The heart is a muscular organ roughly the size of a closed fist, hollow, and cone- shaped. It weighs between 10 to 12 ounces in men and 8 to 10 ounces in women. You will find it located in the thoracic cavity medial to the lungs and behind or posterior to the sternum. It functions as the body’s circulatory pump. It is like a double pump with two important functions: (1) the right side pumps blood to the lungs to pick oxygen and get rid of carbon dioxide; (2) The left side receives the oxygenated blood from the lungs and pumps the blood thorough out the body to supply body tissues with oxygen and nutrients. Part of the pulmonary circuit and the systemic circuit are the blood vessels that carry the oxygenated and deoxygenated blood. The two receiving chambers that receive blood coming from the pulmonary circuit and systemic circuit is the atria. The heart has two main pumping chambers called ventricles that pump blood around the two circuits. The heart is truly resilient as it is constantly beating without voluntary control. The heart is vital to the human body. Understanding about how it works may lead to better life choices in terms of health, fitness, and diet.
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The heart is the largest organ in the mediastinum, which is the partition between the two lungs. The heart also has four corners that are defined by four corners that project into the thoracic wall. They are the superior right point, which lies where the costal cartilage of the third rib connects to the sternum.
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