The costocervical trunk (latin: truncus costocervicalis) is a small branch of the subclavian artery that supplies blood to the costal and cervical regions.
The costocervical trunk originates from the posterior surface of the subclavian artery, runs posteriorly splits into the following branches:
- deep cervical artery,
- superior intercostal artery.
The costocervical trunk supplies the first two intercostal spaces and the posterior deep muscles of the neck.