{"version":"1.0","provider_name":"Learn Libre","provider_url":"https:\/\/learnlibre.com\/es\/","author_name":"Learn Libre","author_url":"https:\/\/learnlibre.com\/es\/author\/sciencematters\/","title":"Muscles and Bones - Learn Libre","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"P8N96VxET7\"><a href=\"https:\/\/learnlibre.com\/es\/lessons\/muscles-and-bones\/\">M\u00fasculos y huesos<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/learnlibre.com\/es\/lessons\/muscles-and-bones\/embed\/#?secret=P8N96VxET7\" width=\"600\" height=\"338\" title=\"&#8220;Muscles and Bones&#8221; &#8212; Learn Libre\" data-secret=\"P8N96VxET7\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!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);\n\/\/# sourceURL=https:\/\/learnlibre.com\/wp-includes\/js\/wp-embed.min.js\n<\/script>","thumbnail_url":"https:\/\/learnlibre.com\/wp-content\/uploads\/2025\/07\/Muscles-and-Bones-Featured.webp","thumbnail_width":3840,"thumbnail_height":2160,"description":"In this lesson, you\u2019ll learn about the two main systems that help your body move: your muscles and your bones. We\u2019ll start by observing the places where bones meet, called joints, and see how some people are more flexible than others. Then you\u2019ll learn which muscles control different movements, and try to guess which ones..."}