Inferior cervical ganglion

Inferior cervical ganglion
Diagram of the cervical sympathetic. ("Lower cervical ganglion" labeled at bottom right.)
Plan of right sympathetic cord and splanchnic nerves. (Inferior cervical ganglion labeled at upper right.)
Details
InnervatesThyroid
Identifiers
Latinganglion cervicale inferius
TA98A14.3.01.019
TA26611
FMA6961
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

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

The inferior cervical ganglion gives off two branches:

Development

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

Additional images

See also

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