Configuration of the four parasympathetic ganglia of the head. Each has three roots entering the ganglion and a variable number of exiting branches. Parasympathetic fibres travel within a branch of the glossopharyngeal nerve, the lesser petrosal nerve. In man preganglionic parasympathetic fibres reach the otic ganglion via the lesser superficial petrosal nerve, which. Pdf the otic ganglion is a cranial component of the parasympathetic division of the autonomic nervous system ans. Us20150306188a1 treatment of headache by injection of. Anatomical landmarks for localizing the otic ganglion. Branches of the ciliary ganglion are named the short ciliary nerves while those of the pterygopalatine ganglion are termed the orbital, pharyngeal, palatine and. The ciliary, pterygopalatine, submandibular, and otic ganglia lie in the head and they are parasympathetic in function. The otic ganglion has an additional motor root that arises from the nerve to the medial pterygoid muscle, passes through the ganglion without relay, and then emerges to supply tensor palati and tensor tympani muscles. Anteroinferior to external acoustic meatus, between ramus of mandible and the sternomastoid and mastoid process. It is closely associated with the mandibular nerve v 3. Neuroanatomy, otic ganglion statpearls ncbi bookshelf. Its closely associated with the mandibular nerve but functionally its related to glossopharyngeal nerve.
Otic ganglion definition of otic ganglion by medical. Why the lacrimal gland receives secretomotor fibers from pterygopalatine ganglion which is located in pterygopalatine fossa via zygomatic. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. Also through otic ganglion, without synapsing, pass the somatomotor fibers which are responsible for the innervation of tensor veli palatini and tensor tympani muscles derived from motor part of mandibular division of trigeminal nerve submandibular ganglion edit edit source.
An anatomist named arnold first described it in 1828. The otic ganglion is located in the infratemporal fossa inferior and medial to the oval foramen. Preganglionic parasympathetic secretomotor fibers from the glossopharyngeal, tympanic, and lesser petrosal nerves synapse in the otic ganglion. There are four parasympathetic ganglia located within the head the ciliary, otic, pterygopalatine and submandibular.
Trigeminal nerve regional nerve blocks and infiltration. Anatomic study of the otic ganglion in humans roitman. The optic ganglion, thoracic ganglion, and brain ganglion have been identified as important neuroendocrine organs in crustaceans, and some hormones excreted from these neuroendocrine organs play an important role in the regulation of gonadal maturation mazurova et al. Otic ganglion neurons are morphologically similar to those of the pterygopalatine ganglion slavich, 1932. Secretomotor fibres to parotid gland via auriculotemporal nerve. In the rat there is no direct connection between the glossopharyngeal nerve and the otic ganglion, as is the case in man. The apparatus further includes a stimulator, configured to drive the one. The otic ganglion and its neural connections in the rat.
Otic ganglion small, fusiform, between mandibular nerve and tensor tympani. Ix nerve lesser petrosal synapse in ganglion postgang. The otic ganglion lies medial to the pterygopalatine branch of the internal carotid artery and beneath the trigeminal ganglion from which it is separated by the sphenoid bone. View enhanced pdf access article on wiley online library html view. A ganglion of postganglionic autonomic neurons in the peripheral nervous system that are surrounded by a capsule of loose connective tissue. Unnamed branches of the otic ganglion join the two roots of the auriculotemporal. Parasympathetic ganglia derive from schwann cell precursors. Subsequently, the otic ganglion, which normally forms at the end of jacobsons nerve, was absent, whereas the cardiac ganglia, which normally lie on cardiac branches of nx, were present fig. The otic ganglion og is a cranial parasympathetic ganglion located in the infratemporal fossa under the. Cranial parasympathetic ganglions and their relations with.
A neuroinhibitory substance for use in a method for treating or preventing headache comprising injecting a neuroinhibitory substance such as botulinium toxin in close proximity to the sphenopalatine ganglion or otic ganglion wherein an injection device comprising said neuroinhibitory substance is brought into close proximity to the sphenopalatine ganglion or otic ganglion by inserting said. Dendrites of the neurons can be limited to the neuropil inside the ganglion, or they can pierce the capsule and extend into the surrounding regions. It arises from the convex surface of the gasserian ganglion, in the dura of the lateral wall of the cavernous venous sinus under cn iv and above the maxillary nerve, as seen in the image below. Parasympathetic fibres travel within a branch of the glossopharyngeal nerve, the lesser petrosal nerve, to reach the otic ganglion. Its joined to the mandibular division of trigeminal nerve and gives a relay station to the secretomotor fibres to the parotid gland and is a small parasympathetic ganglion. Parasympathetic innervation to the head and neck anatomy. The otic ganglion og is a cranial parasympathetic ganglion located in the infratemporal fossa under the foramen ovale fo and. Jeanpierre barral, alain croibier, in manual therapy for the cranial nerves, 2009. The otic ganglion and its neural connections in the. The otic ganglion is one of four parasympathetic ganglia of the head and neck. The distribution of dorsal rami of the otic ganglion was traced on one or both sides of 1 rhesus and 15 cynomolgus monkeys using interrupted serial sections. The ganglion is supplied by fibres from inferior salivatory nucleus associated with the glossopharyngeal nerve.
Bid expression network controls neuronal cell fate. This article was originally based on an entry from a public domain edition of grays anatomy. It is medial to the mandibular branch of the trigeminal nerve. Parasympathetic innervation to the head and neck ganglia.
Pterygopalatine ganglion wikimili, the best wikipedia reader. The otic ganglion is located in the infratemporal fossa, just below the foramen ovale. The otic ganglion is located inferiorly to the foramen ovale, within the infratemporal fossa. Angelov7, and erling tronvik1,2,3 abstract background. However, the otic ganglion has an additional motor root. Pdf morphology, topography and cytoarchitectonics of the. Apparatus is provided including one or more electrodes, adapted to be applied to an otic ganglion site of a patient selected from the group consisting of. From 15 to 24 fine rami containing unmyelinated and small myelinated nerve fibres entered the cranial cavity with. It receives parasympathetic fibers from the glossopharyngeal nerve. A possible new treatment target for headache disorders joan crespi1,2,3, daniel bratbak2,4, david w. If you continue browsing the site, you agree to the use of cookies on this website.
Botulinum toxin type a block of the otic ganglion in. Optic ganglion definition of optic ganglion by medical. Mandibular division of trifacial nerve, seen from the middle line. Following topics are included in this video location description of different nerve fibres which are passage through the ganglion innervation of parotid gland. The otic ganglion is a small parasympathetic ganglion located immediately below the foramen. The tympanic nerve is the first branch arising from the inferior ganglion of the glossopharyngeal nerve. Otic ganglion is one of the four parasympathetic ganglia within the head region. Unnamed branches of the otic ganglion join the two roots of the auriculotemporal nerve to supply the parotid gland. Peripheral parasympathetic ganglion connected functionally with glossopharyngeal nerve motor root.
A slender filament sphenoidal ascends from it to the nerve of the pterygoid canal, and a small branch connects it with the chorda tympani. The ganglion lies inferior to the ala majoris ossis sphenoidalis and superior to the levator veli palatini muscle. Anatomic variation of cranial parasympathetic ganglia. Otic ganglia rana usama amjad mbbsii rai medical college sargodha slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The parotid gland paraaround otic ear irregular, yellowish, lobulated weight 25 gm. Avian ciliary ganglion cg development involves a transient execution phase of apoptosis controlling the final number of neurons, but the. The ophthalmic nerve is the first branch of the trigeminal nerve. Diagram showing the structures in the cavernous sinus. The presentation in the literature of the anatomy of the human otic ganglion og has not varied much over the past three quarters of a century, precise, similar descriptions of its size, color, shape, and relation with neighboring structures are portrayed in numerous textbooks and articles.
As such, some of the information contained herein may be outdated. The motor root carries presynaptic parasympathetic nerve fibers that terminate in the ganglion and synapse with the postsynaptic fibers that, in turn, project to target organs the sympathetic root carries postsynaptic sympathetic fibers that traverse the ganglion without synapsing. Despite its modest size it has a multitude of functions which are not only limited to the middle ear. Otic ganglion injections nervus trigeminus tinnitus. Each has sensory, sympathetic and parasympathetic roots. Anatomic variation of cranial parasympathetic ganglia 104 braz oral res 2008. The sphenopalatine ganglion has been a target for treatment of primary headache disorders for more than a century but there are several anatomic and physiologic studies that suggest that another cranial parasympathetic ganglion, the otic ganglion og, might be also relevant in ch. Configuration of the four parasympathetic ganglia of the. Fibers postganglionic from the otic ganglion with which these form synapses are supposed to pass with the auriculotemporal nerve to the parotid gland.
But if you do some research yourself you can find out that there is also a german source publication by eberhard biesinger, a german ent where otic ganglion injections as a tinnitus treatment are discussed superficially. Some otic ganglion neurons project directly to vasculature in the jaws and the cerebral circulation walters et al. The sphenopalatine ganglion spg is associated with the trigeminal nerve, the major nerve involved in headache ha disorders see figure 1. Its closely associated with the mandibular nerve but functionally its related to glossopharyngeal nerve, topographically. It is functionally associated with the glossopharyngeal nerve and innervates the parotid gland for salivation.