Superior root of ansa cervicalis

Superior root of ansa cervicalis
Ansa cervicalis. Superior root labeled as "descending hypoglossal", Inferior root labeled as "descending cervical".
Details
Identifiers
Latin	radix superior ansae cervicalis, descendens hypoglossi
TA	A14.2.02.014
FMA	55145
*Anatomical terms of neuroanatomy* [edit on Wikidata]

The superior root of the ansa cervicalis is formed from cervical spinal nerve 1 of the cervical plexus.

These nerve fibers travel in the hypoglossal nerve before separating in the carotid triangle to form the superior root.

The superior root goes around the occipital artery and then descends on the carotid sheath.

It sends off branches to the superior belly of the omohyoid muscle, and the upper parts of the sternothyroid and sternohyoid muscles and is then joined by the inferior root.

Additional Images

Muscles, arteries and nerves of neck.Newborn dissection.

External links

Nerves of the cervical plexus

Superficial	C2 Lesser occipital C2–C3 Greater auricular Transverse cervical C3–C4 Supraclavicular

Deep	C1–C3 Ansa cervicalis superior root inferior root C3–C5 Phrenic

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