1.0Poliklinika Arcadiahttps://poliklinika-arcadia.hr/en/rich600338<blockquote class="wp-embedded-content" data-secret="HKtJbIsWq2"><a href="https://poliklinika-arcadia.hr/en/how-the-ultrasound-functions/">How The Ultrasound Functions</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://poliklinika-arcadia.hr/en/how-the-ultrasound-functions/embed/#?secret=HKtJbIsWq2" width="600" height="338" title="“How The Ultrasound Functions” — Poliklinika Arcadia" data-secret="HKtJbIsWq2" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://poliklinika-arcadia.hr/wp-includes/js/wp-embed.min.js </script> Ultrasound imaging is based on the same principle as the sonar used by the bats, dolphins and fishermen on their boats. When a sound wave hits an object, it reflects which means that it produces an echo. By measuring such echo waves, it is possible to determine the distance of an object and its size,