Inferior cervical ganglion
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| Nerve: Inferior cervical ganglion | ||
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| 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 | |
The inferior cervical ganglion (ganglion cervicale inferius) 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.
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.
It gives off the inferior cardiac nerve, and offsets to bloodvessels.
Contents |
[edit] 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
| Autonomic nervous system |
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| sympathetic nervous system: sympathetic trunks (white ramus communicans, gray ramus communicans) - collateral ganglia cavernous plexus - cervical ganglia: (superior, middle, inferior) - splanchnic nerves: (thoracic, lumbar, sacral) - ganglion impar celiac: celiac ganglia - aorticorenal - renal - spermatic/ovarian - superior mesenteric - aortic plexus - inferior mesenteric - hepatic - splenic - gastric - pancreatic - suprarenal hypogastric: superior hypogastric - inferior hypogastric - vesical - prostatic - uterovaginal parasympathetic nervous system: ciliary ganglion (short ciliary nerves) - pterygopalatine ganglion (nerve of pterygoid canal) - submandibular ganglion - otic ganglion - pelvic splanchnic |
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