Origin – spinous processes of T3-T6
Insertion – anterior aspect of the transverse processes of C1-C3
Function – unilaterally this is involved in rotation and side-bending of the neck. Bilaterally, these muscles extend the neck.
“Splenius” comes from the Greek word “splenion” meaning “bandage.” This muscle acts as a wrap around the muscles of the neck.
A lateral view of the splenii showing how they compress the cervicals as they extend, side bend and rotate the head and upper neck.
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