Ace the 2026 Cooper Krone Exam 1 – Power Up Your Practice and Conquer!

The deep back muscles in the cervical region are supplied by the deep cervical arteries, which come from the deep branch of the costocervical trunk. This branch, arising from the subclavian artery, ascends to feed the deep neck muscles (like semispinalis capitis and cervicis) and the surrounding vertebral structures, often connecting with other neck vessels. The other arteries listed aren’t the primary suppliers for these deep cervical muscles: the occipital artery mainly serves the posterior scalp and some neck muscles; the posterior intercostal arteries feed the thoracic wall; and the lumbar arteries supply the lumbar region.