P3 - x-rays and Ultrasound

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  • Created by: MOLLY85
  • Created on: 09-11-16 18:19

Ultrasound

Ultrasound is the sound above what humans can normally hear. Ultrasound waves can be produced by electronic systems. When its refelcted its called an echo. They are often used for medical reasons as it DOESNT IONISE so doesnt have the same risks as x-rays. The range of human hearing is about 20Hz to 20000Hz

Medical uses;

- fetus scans check babies development (different tissues have different densities so its reflected…

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