Deep Cervical Artery, Gross Anatomy

Description

Posterolateral views of the male skull and cervical vertebral column frame the deep cervical artery as it ascends in the posterior neck. Originating from the costocervical trunk of the subclavian artery, the vessel tracks superiorly and medially, deep to semispinalis capitis and splenius capitis, and alongside the posterior elements of the mid to upper cervical vertebrae. Segmental branches course laterally toward the deep paraspinal musculature, while adjacent blue venous channels outline the companion drainage pathways in the same region. Bone is the constant landmark. This posterior neck corridor matters because the deep cervical artery is a primary supplier of the deep extensor compartment and participates in anastomoses with the occipital artery and vertebral artery branches, a pattern that can maintain perfusion when one route is compromised. During posterior cervical exposure, instrumented fusion, or approaches that strip semispinalis and splenius from the spinous processes and laminae, these vessels are a common source of persistent muscular bleeding. Their sheltered course explains why bleeding can be deep, diffuse, and hard to compress. Educators will find this plate fits best in head and neck gross anatomy, spine surgery teaching modules, and radiologic correlation for angiography or contrast CT of the lower neck where the costocervical trunk and its branches are traced. Publishers can also pair it with content on posterior cervical compartment anatomy, occipito-cervical anastomoses, and iatrogenic vascular injury during posterior approaches. Anatomical accuracy verified by SciePro's Medical Advisory Board.