Artificial heart valve and pacemaker

Numéro d’image : 11853223
Artificial heart valve and pacemaker
Prosthetic heart valve and pacemaker. Coloured X- ray of a side-view of a 72-year-old woman's chest. She has a prosthetic heart valve (yellow ring) and a pacemaker (white oblong,upper right). Stitches (rings,right) used to close the chest are also seen. Heart valves control the flow of blood between chambers of the heart. Valve failure can lead to malfunctioning of the heart and death. The pacemaker supplies electrical impulses,along a lead,to the heart to keep it beating regularly. Pacemakers are fitted in patients with a defective sinoatrial node,the part of the heart that initiates the heartbeat,or in patients with a heart block,which impairs the nerve impulse generated by the node
Licence : Droits gérés
Crédit: Science Photo Library / Zephyr
Taille de l’image : 3402 px × 3980 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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