Quick Facts
Origin: From a common supraclavicular nerve trunk formed by the anterior rami of third and fourth cervical nerves (C3-4).
Course: Pierces the deep cervical fascia just above the clavicle and runs inferomedially towards the sternum and the second rib.
Branches: None.
Supply: Skin as far below as the second rib towards the midline and the sternoclavicular joint.
Origin
The medial supraclavicular nerves are one of the three groups of nerves that arise from a common supraclavicular nerve trunk. It receives its sensory neurons from the anterior rami of third and fourth cervical nerves. The other nerves originating from the trunk include the intermediate and lateral supraclavicular nerves.
Course
The medial supraclavicular nerves pierce the deep fascia just above the clavicle. They run inferomedially, crossing over the external jugular vein and the two (clavicular and sternal) heads of sternocleidomastoid muscle.
Branches
There are no named branches.
Supplied Structures
The medial supraclavicular nerves provide sensory innervation to the skin as far below as the second rib towards the midline. It also gives an articular branch to the sternoclavicular joint.
