text: how ultrasound works in sonography? it's a medical physics research for students like me,we are a group of three pharmaceutical students and searching the net for more info about this major of physics ,we'd be grateful for more info or related sited,thanx in advance there is a huge amount of information about this on the internet. i listed a couple of references you could start with.   ultrasound is just a very high frequency sound wave, beyond the range of human hearing. the ultrasound waves bounce off tissues and structures in the body, and these reflections can be reconstructed to form images of the interior of the body.