The scalene muscles are a group of three paired muscles located in the lateral aspect of the neck: anterior, middle, and posterior scalenes. They originate from the transverse processes of the cervical vertebrae and insert onto the first and second ribs. The anterior and middle scalenes attach to the first rib, while the posterior scalene inserts on the second rib. Functionally, the scalenes assist in elevating the ribs during forced inspiration, playing a role in breathing. They also contribute