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Cardiac Cycle - Medical Animation



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8/7/20
Cardiac Cycle - Medical Animation
 
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Cardiac Cycle - Medical Animation
MEDICAL ANIMATION TRANSCRIPT:
The cardiac cycle is the sequence of contraction and relaxation of the heart chambers during a single heartbeat. The contraction of the heart chambers is called systole. And relaxation of the heart chambers is called diastole. The cycle begins with both the atria and ventricles in diastole. Both atrioventricular valves are open while the pulmonary and aortic semilunar valves are closed. Blood flows into the right atrium through the superior and inferior vena cava. Blood flows from the lungs into the left atrium through the pulmonary veins. Then blood moves from both atria into the ventricles through the open atrial ventricular valves. During atrial systole, the atria contract and force any remaining atrial blood into the ventricles. The ventricles are still in diastole, allowing them to expand and completely fill with blood. During ventricular systole, the ventricles contract, the atrioventricular valves close, preventing backflow or regurgitation of blood into the atria, the pulmonary semilunar valve opens, and the right ventricle expels blood into the pulmonary arteries to the lungs. Likewise, the aortic semilunar valve opens and the left ventricle expels blood into the aorta and out to the rest of the body. After ventricular systole, the cardiac cycle begins again as both the atria and ventricles enter diastole to allow the heart to fill with blood. Normally, this cycle repeats 60 to 100 times a minute. The right-side of the heart produces pulmonary circulation. This is the movement of deoxygenated blood from the body through the right atrium and ventricle, out through the pulmonary artery and to the lungs. Blood oxygenated in the lungs' alveoli returns to the heart through the pulmonary veins. The left side of the heart produces systemic circulation. This is the movement of oxygenated blood returning from the lungs to the left atrium and ventricle and out through the aorta to be distributed to the rest of the body. ♪ [music] ♪

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"This past year, your company prepared three medical illustrations for our cases; two in which we received six figure awards; one in which we received a substantial seven figure award. I believe in large part, the amounts obtained were due to the vivid illustrations of my clients' injuries and the impact on the finder of fact."

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Marcari Russotto & Spencer, P.C.
Chesapeake, VA

"Thanks, and your illustrations were effective in a $3 million dollar verdict last Friday."

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Trial Lawyer
White Rock, British Columbia
"This past year, your company prepared three medical illustrations for our cases; two in which we received six figure awards; one in which we received a substantial seven figure award. I believe in large part, the amounts obtained were due to the vivid illustrations of my clients' injuries and the impact on the finder of fact."

Donald W. Marcari
Marcari Russotto & Spencer, P.C.
Chesapeake, VA
"It is with great enthusiasm that I recommend Medical Legal Art. We have used their services for three years and always found their professionalism, quality of work, and timely attention to detail to exceed our expectations. We recently settled two complicated catastrophic injury cases. One medical malpractice case involving a spinal abscess settled for 3.75 million and the other involving injuries related to a motor vehicle accident settled for 6.9 million. We consider the artwork provided by MLA to have been invaluable in helping us to successfully conclude these cases.

I highly recommend MLA to anyone seeking high quality, detailed medical legal artwork."

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Davis Zipperman, Krischenbaum & Lotito
Atlanta, GA
www.emarcusdavis.com

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