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Encyclopedia > Ganglion impar
Ganglion impar
Gray's subject #214 984

The pelvic portion of each sympathetic trunk is situated in front of the sacrum, medial to the anterior sacral foramina. It consists of four or five small sacral ganglia, connected together by interganglionic cords, and continuous above with the abdominal portion. Below, the two pelvic sympathetic trunks converge, and end on the front of the coccyx in a small ganglion, the ganglion impar (or ganglion of Walther). The sympathetic trunk (sympathetic chain, gangliated cord) is a bundle of nerve fibers that runs from the base of the skull to the coccyx. ... Image of pelvis. ...


See also

Coccydynia is a medical condition characterized by pain in the coccyx or tailbone area. ...

External links

  • "Treatment of coccydynia by injection of local anesthetic to the ganglion impar", at coccyx.org

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...

Autonomic nervous system

preganglionic fibers - postganglionic fibers This article or section is in need of attention from an expert on the subject. ...


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 Grays FIG. 838– The right sympathetic chain and its connections with the thoracic, abdominal, and pelvic plexuses. ... The sympathetic trunk (sympathetic chain, gangliated cord) is a bundle of nerve fibers that runs from the base of the skull to the coccyx. ... The thoracic, and the first and second lumbar nerves each contribute a branch, white ramus communicans to the adjoining sympathetic ganglion. ... Each spinal nerve receives a branch, gray ramus communicans, from the adjacent ganglion of the sympathetic trunk. ... Collateral Ganglia lie between the sympathetic chain and the organ of supply. ... The cavernous plexus is situated below and medial to that part of the internal carotid artery which is placed by the side of the sella turcica in the cavernous sinus, and is formed chiefly by the medial division of the internal carotid nerve. ... The superior cervical ganglion, the largest of the cervical ganglia, is placed opposite the second and third cervical vertebræ. It is of a reddish-gray color, and usually fusiform in shape; sometimes broad and flattened, and occasionally constricted at intervals; it is believed to be formed by the coalescence of...


internal carotid - cardiac The cardiac plexus is a plexus of nerves situated at the base of the heart that innervate the heart. ...


celiac: celiac ganglia - aorticorenal - renal - spermatic/ovarian - superior mesenteric - aortic plexus - inferior mesenteric - hepatic - splenic - gastric - pancreatic - suprarenal The solar plexus, also known as the celiac plexus or plexus cœliacus, is an autonomous cluster of nerve cells (see Plexus) in the human body behind the stomach and below the diaphragm near the celiac artery in the abdominal cavity. ... The Celiac Ganglia (semilunar ganglia) are two large irregularly shaped masses having the appearance of lymph glands and placed one on either side of the middle line in front of the crura of the diaphragm close to the suprarenal glands, that on the right side being placed behind the inferior... The upper part of each celiac ganglion is joined by the greater splanchnic nerve, while the lower part, which is segmented off and named the aorticorenal ganglion, receives the lesser splanchnic nerve and gives off the greater part of the renal plexus. ... The abdominal aortic plexus (aortic plexus) is formed by branches derived, on either side, from the celiac plexus and ganglia, and receives filaments from some of the lumbar ganglia. ... The superior gastric plexus (gastric or coronary plexus) accompanies the left gastric artery along the lesser curvature of the stomach, and joins with branches from the left vagus. ...


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 It has been suggested that Parasympatholytic be merged into this article or section. ... The ciliary ganglion is small parasympathetic ganglion lying in the orbit between the optic nerve and the lateral rectus muscle that is associated with the nasociliary nerve (a branch of the ophthalmic division of the trigeminal nerve). ... The branches of the ciliary ganglion are the short ciliary nerves. ... The sphenopalatine ganglion is a parasympathetic ganglion found in the spheno-maxillary fossa. ... The nerve of the pterygoid canal (Vidian nerve), formed by the junction of the great petrosal nerve and the deep petrosal nerve in the cartilaginous substance which fills the foramen lacerum, passes forward, through the pterygoid canal, with the corresponding artery, and is joined by a small ascending sphenoidal branch... The submandibular ganglion (or submaxillary ganglion in older texts) is of small size and is fusiform in shape. ... The Otic Ganglion is a parasympathetic ganglion located immediately below the foramen ovale. ...


 
 

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