Heart pacemaker. Coloured frontal X-ray of the chest of a patient with a heart pacemaker (centre left). The heart is at lower right,the two dark areas on either side are the lungs. The pacemaker supplies electrical impulses,along a lead,to the heart to keep it beating regularly. Pacemakers are fitted in patients with a malfunctioning sinoatrial node,the part of the heart that initiates the heartbeat,or in patients with a heart block,which impairs the nerve impulses generated by the node. Pacemakers may provide a regular impulse or discharge only when a heartbeat is missed | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Maslo, Miriam |
Bildgröße: | 4882 px × 3580 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |