Levator Scapulae
Shoulder & Arm
Tightness here is the classic 'stiff neck' you wake up with after sleeping wrong.
Function
Elevates scapula, downwardly rotates scapula
Origin
Transverse processes of C1-C4
Insertion
Superior angle of scapula
Innervation
Dorsal scapular nerve (C3-C5) and C3-C4