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Cardiac Cycle - Medical Animation

 

This animation may only be used in support of a single legal proceeding and for no other purpose. Read our License Agreement for details. To license this image for other purposes, click here.

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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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What attorneys say about MLA and The Doe Report:
"For modern audiences, it is absolutely essential to use medical demonstrative evidence to convey the severity and extent of physical injuries to a jury. Your company's high quality illustrations of our client's discectomy surgery, combined with strong expert testimony, allowed the jury to fully appreciate the significance of our client's injuries.

We are very pleased with a verdict exceeding $297,000.00, far in excess of the $20,000.00 initially offered by the defendant. The medical demonstrative evidence provided by Medical Legal Art was an asset we could not have afforded to have been without."

Todd J. Kenyon
Attorney at Law
Minneapolis, MN

"Our firm was able to settle our case at an all day mediation yesterday and I am confident that the detail and overall appearance of the medical illustrations significantly contributed to the settlement. When we require medical illustrations in the future, I will be sure to contact [MLA]."

Noel Turner, III
Burts, Turner, Rhodes & Thompson
Spartanburg, SC

"You and your company are wonderful. Your service, turnaround time, quality and price were better than I could have asked for. Please add me to your long list of satisfied customers."

Robert F. Linton, Jr.
Linton & Hirshman
Cleveland, OH

"Medical illustrations are essential during trial for any medical malpractice case. The people at MLA have the uncanny ability of creating medical illustrations that simplify the most complex of medical concepts and human anatomy to a lay audience. The exhibits of MLA allow experts to easily describe complex concepts and human anatomy in a manner that could not be done otherwise.

In addition, their custom illustrations show in great detail the extent of injuries suffered and the devastating effects they have had on the client's anatomy. These custom illustration can show, side by side, the body before and after a catastrophic injury. The effect of this juxtaposition is unmatched by any testimony that can be adduced at the time of trial.

Even jurors after trial have commented on the ease with which they grasp medical concepts and anatomy once the MLA exhibits were introduced and used by my experts. Even judges who have "seen it all" are thoroughly impressed by the detail and sophistication of the illustrations.

I would not want to try a case without them."

Lambros Y. Lambrou
McHUGH & LAMBROU, LLP
New York, NY













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