Inferior cervical ganglion

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Nerve: Inferior cervical ganglion
Gray844.png
Diagram of the cervical sympathetic. ("Lower cervical ganglion" labeled at bottom right.)
Gray845.png
Plan of right sympathetic cord and splanchnic nerves. (Inferior cervical ganglion labeled at upper right.)
Latin ganglion cervicale inferius
Gray's p.980
Innervates Thyroid
Anatomical terms of neuroanatomy

The inferior cervical ganglion is situated between the base of the transverse process of the last cervical vertebra and the neck of the first rib, on the medial side of the costocervical artery.

Its form is irregular; it is larger in size than the middle cervical ganglion, and is frequently fused with the first thoracic ganglion, under which circumstances it is then called the "stellate ganglion."

Structure[edit]

It is connected to the middle cervical ganglion by two or more cords, one of which forms a loop around the subclavian artery and supplies offsets to it. This loop is named the ansa subclavia (Vieussenii).

The ganglion sends gray rami communicantes to the seventh and eighth cervical nerves.

Branches[edit]

The inferior cervical ganglion gives off two branches:

Development[edit]

It is probably formed by the coalescence of two ganglia which correspond to the seventh and eighth cervical nerves.

Additional images[edit]

See also[edit]

This article uses anatomical terminology; for an overview, see anatomical terminology.

External links[edit]