Inferior cervical ganglion

From Wikipedia, the free encyclopedia

Nerve: 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.)
Latin	ganglion cervicale inferius
Gray's	subject #216 980
Innervates	Thyroid
Dorlands / Elsevier	g_02/12384370

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.

Contents 1 Path 2 Branches 2.1 Inferior cardiac nerve 2.2 Offsets to bloodvessels 3 Additional images 4 External links

[edit] Path

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

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.

[edit] Branches

It gives off the inferior cardiac nerve, and offsets to bloodvessels.

[edit] Inferior cardiac nerve

See Inferior cardiac nerve

[edit] Offsets to bloodvessels

The offsets to bloodvessels form plexuses on the subclavian artery and its branches.

The plexus on the vertebral artery is continued on to the basilar, posterior cerebral, and cerebellar arteries.

The plexus on the inferior thyroid artery accompanies the artery to the thyroid gland, and communicates with the recurrent and external laryngeal nerves, with the superior cardiac nerve, and with the plexus on the common carotid artery.

[edit] Additional images

The right sympathetic chain and its connections with the thoracic, abdominal, and pelvic plexuses.

[edit] External links

• -1039794118 at GPnotebook
• SUNY Labs 31:07-0200 - "The Sympathetic Trunk and Cervical Ganglia"

v • d • e Nerves - autonomic nervous system (sympathetic nervous system/ganglion/trunks and parasympathetic nervous system/ganglion) Head/cranial Ciliary ganglion: roots (Sensory, Parasympathetic, Sympathetic) - Short ciliary Pterygopalatine ganglion: deep petrosal - nerve of pterygoid canal branches of distribution: greater palatine (inferior posterior nasal branches) - lesser palatine - nasopalatine (medial superior posterior nasal branches) - pharyngeal Submandibular ganglion Otic ganglion Neck/cervical paravertebral ganglia: Cervical ganglia (Superior, Middle, Inferior) - Stellate ganglion prevertebral plexus: Cavernous plexus - Internal carotid Chest/thorax paravertebral ganglia: Thoracic ganglia prevertebral plexus: Cardiac plexus - Esophageal plexus - Pulmonary plexus - Thoracic aortic plexus splanchnic nerves: cardiopulmonary - thoracic cardiac nerves: Superior - Middle - Inferior Abdomen/Lumbar paravertebral ganglia: Lumbar ganglia prevertebral ganglia: Celiac ganglia (Aorticorenal) - Superior mesenteric ganglion - Inferior mesenteric ganglion prevertebral plexus: Celiac plexus - (Hepatic, Splenic, Pancreatic) - aorticorenal (Abdominal aortic plexus, Renal/Suprarenal) - Superior mesenteric (Gastric) - Inferior mesenteric (Spermatic, Ovarian) - Superior hypogastric (hypogastric nerve, Superior rectal) - Inferior hypogastric (Vesical, Prostatic/Cavernous nerves of penis, Uterovaginal, Middle rectal) splanchnic nerves: Lumbar splanchnic nerves enteric nervous system: Meissner's plexus • Auerbach's plexus Pelvis/sacral paravertebral ganglia: Sacral ganglia - Ganglion impar splanchnic nerves: Pelvic splanchnic nerves - Sacral splanchnic nerves All Rami communicans (White, Gray) - Preganglionic fibers - Postganglionic fibers