Cardiac electrophysiology, animation
Videonummer 12081992
| Cardiac electrophysiology. Animation showing the electrical conduction system and cardiac cycle of the beating heart. The animation starts with a view of a sectioned human heart, showing the heart's internal chambers, the right and left ventricle and the right and left atrium. Blood is shown entering the heart (coloured arrows): deoxygenated blood (blue) from the body and oxygenated blood (red) from the lungs. The components of the heart's electrical conduction system shown are the sinoatrial node (SAN), the atrioventricular node (AVN), the bundle of His and the Purkinje fibres. The electrical activity causing the heart chamber walls to contract is shown in white. During atrial systole, the cardiac muscles in the walls of the atria contract to pump blood from the atrium on one side of the heart downwards to the ventricle underneath. This is followed by ventricular systole where the ventricles contract to pump blood around the body and to the lungs. The period of relaxation, where the heart's atria fill up with blood again to restart the cycle, is known as diastole. Labelled version: K005/6431. Alpha channel versions: K005/6423 and K005/6427. | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / FLIX PRODUCTIONS MEDICAL ANIMATION / RHYS LEWIS, AHS, DECD, UNISA |
| Modell-Rechte: | nicht erforderlich |
| Länge: | 17 Sekunden |
| Seitenverhältnis: | 16:9 |
| Restrictions: | - |
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