Skip to main content

Unfortunately we don't fully support your browser. If you have the option to, please upgrade to a newer version or use Mozilla Firefox, Microsoft Edge, Google Chrome, or Safari 14 or newer. If you are unable to, and need support, please send us your feedback.

Elsevier
Publish with us
Anterior Ramus of First Cervical Nerve (Left)
Nervous System

Anterior Ramus of First Cervical Nerve (Left)

Ramus anterior nervi cervicalis primi

Read more

Quick Facts

Origin: First cervical nerve.

Course: Run laterally in the neck from the foramen between occipital bone and atlas vertebra and contributes to the cervical plexus.

Branches: Communicating branch to hypoglossal nerve.

Supply: Somatic motor innervation to the geniohyoid, infrahyoid, and prevertebral muscles. Visceral autonomic efferents to blood vessels and glands.

Complete Anatomy
The world's most advanced 3D anatomy platform
Try it for Free

Origin

The anterior ramus of the first cervical nerve originates from the first cervical nerve.

Course

The anterior ramus of the first cervical nerve originates in the neck, lateral to the foramen between the occipital bone (of the skull) above and the atlas (first cervical vertebra) below.

Branches

The anterior ramus of the first cervical nerve sends a communicating branch to the hypoglossal nerve and contributes to the cervical plexus along with anterior rami of the second to fourth cervical nerves.

Supplied Structures

The anterior ramus of the first cervical nerve innervates the infrahyoid muscles (sternohyoid, sternothyroid, and superior belly of omohyoid) via the cervical plexus. The thyrohyoid and geniohyoid muscles are also innervated by the anterior ramus of the first cervical nerve via a communicating branch to the hypoglossal nerve.

The sympathetic innervation to blood vessels and glands in the head and neck region originates in the lateral horn of the first thoracic spinal segment and ascends in the sympathetic chain to reach the superior cervical ganglion. From here, the postganglionic sympathetic neurons enter the anterior ramus of the first cervical nerve via the gray communicating branches and get subsequently distributed to vessels and glands.

Learn more about this topic from other Elsevier products

Cervical Nerves

ScienceDirect image

Burner or stinger syndrome is a syndrome resulting from injuries to either the upper cervical nerve roots or the upper trunk of BP.

Explore on ScienceDirect(opens in new tab/window)

Complete Anatomy

The world's most advanced 3D anatomy platform

Complete Anatomy