Heart pacemaker. Coloured frontal X-ray of the chest of a male patient with a heart pacemaker (upper right). The heart is the blue mass at centre right,in between the lungs (white). The pacemaker is a device that has leads (running from upper right to lower centre) to supply regular electrical impulses to the heart,so that it beats normally. Pacemakers are surgically 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 can either provide a regular impulse or discharge only when a heartbeat is missed | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gustoimages |
Bildgröße: | 4250 px × 3481 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |