1.0SixPackAbs.euhttps://www.sixpackabs.eu/en/SixPackAbshttps://www.sixpackabs.eu/en/author/sixpackabs/rich600338<blockquote class="wp-embedded-content" data-secret="co0IZL4Ve8"><a href="https://www.sixpackabs.eu/en/what-is-the-serratus-posterior-superior/">What is the Serratus Posterior Superior?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.sixpackabs.eu/en/what-is-the-serratus-posterior-superior/embed/#?secret=co0IZL4Ve8" width="600" height="338" title="“What is the Serratus Posterior Superior?” — SixPackAbs.eu" data-secret="co0IZL4Ve8" 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://www.sixpackabs.eu/wp-includes/js/wp-embed.min.js </script> https://www.sixpackabs.eu/wp-content/uploads/2023/11/handsome-muscled-man-5.jpg25001668The serratus posterior superior is a muscle located in the upper back, just below the neck and above the middle section of the spine. Its primary role is relatively subtle compared to more prominent muscles like the biceps or abs, but it plays an important part in our body’s overall function. This muscle originates from […]