SHOULDER PAIN - ANATOMY LESSON THE SPLENIUS-RHOMBOID-SERRATUS ANTERIOR SLING . Did you know that the splenii muscles (splenius capitis and splenius cervicis) the rhomboid muscles (rhomboid major and rhomboid minor) and the serratus anterior muscle are actually connected!? . On the picture you can see a very important connection of fascial tissue: THE SPLENIUS-RHOMBOIDEUS-SERRATUS ANTERIOR SLING That means if you have problems/tightness in your cervical spine your shoulder will be equally...