Normal heart,ultrasound scan

Numéro d’image : 12960855
Normal heart,ultrasound scan
Normal heart. Coloured ultrasound scan of a healthy heart in a 49-year-old man during the systolic phase of the heartbeat. This scan passes vertically through the heart,with the heart's four chambers seen as the black areas. The central coloured areas are the walls and valves separating the chambers. The top of the heart is at bottom. The top two chambers are the ventricles,and the bottom two chambers are the atria. The heart is a hollow muscular pump that contracts continuously under a steady cycle of electrical impulses,sending blood to the lungs and around the body. An electrocardiogram (ECG) trace is seen across bottom,with the peaks of electrical activity corresponding to the beating of the heart. Ultrasound scanning uses high-frequency sound waves to look at structures inside the body.
Licence : Droits gérés
Crédit: Science Photo Library / Zephyr
Taille de l’image : 4293 px × 3402 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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