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Where is otic ganglion located?

Where is otic ganglion located?

infratemporal fossa
Structure and Location The otic ganglion is housed inside a small structure called the infratemporal fossa. A fossa is a hollow or recessed area in the skull. The infratemporal fossa is on the side of the head between your temple and your jaw. The otic ganglion is the smallest of the parasympathetic cranial ganglia.

Where is ciliary ganglion located?

Ciliary ganglion is a peripheral parasympathetic ganglion. It is situated near the apex of orbit between the optic nerve and lateral rectus muscle. It is related medially to the ophthalmic artery and laterally to the lateral rectus muscle.

What’s otic ganglion?

The otic ganglion has parasympathetic, sympathetic, sensory, and motor roots. The otic ganglion transmits postganglionic parasympathetic secretomotor fibers to all branches of the mandibular division of the trigeminal nerve. It also sends sympathetic vasomotor fibers to the parotid gland.

What nerve Innervates the otic ganglion?

Glossopharyngeal Nerve
Glossopharyngeal Nerve (Cranial Nerve IX) These axons follow the tympanic and lesser petrosal nerves and innervate the otic ganglion, located just medial to the mandibular branch of the trigeminal nerve.

Where is the submandibular ganglion located?

submandibular gland
The submandibular ganglion is small and fusiform in shape. It is situated above the deep portion of the submandibular gland, on the hyoglossus muscle, near the posterior border of the mylohyoid muscle.

Where are the sympathetic trunk ganglia located?

ganglia are located in the sympathetic trunks, two long chains of ganglia stretching along each side of the vertebral column from the base of the skull to the coccyx; these are referred to as paravertebral ganglia.

Where is submandibular ganglion?

The submandibular ganglion is small and fusiform in shape. It is situated above the deep portion of the submandibular gland, on the hyoglossus muscle, near the posterior border of the mylohyoid muscle.

Where does ciliary ganglion come from?

The ciliary ganglion has parasympathetic nerve fibers coming from the oculomotor (third) cranial nerve. The parasympathetic fibers originate from the upper part of the midbrain in an area called the superior colliculus.

What do ganglia do?

Ganglia are clusters of nerve cell bodies found throughout the body. They are part of the peripheral nervous system and carry nerve signals to and from the central nervous system.

What suspends the otic ganglion?

Each ganglion is suspended from a branch of the trigeminal (V) nerve. Each has three roots: sensory, sympathetic and parasympathetic; the otic ganglion, in addition, has a fourth motor root.

What is the submandibular ganglion?

The submandibular ganglion (SMG) is a parasympathetic ganglion, which receives inputs from preganglionic cholinergic neurons and innervates the submandibular salivary gland to control saliva secretion.

What are the 4 parasympathetic ganglia?

Parasympathetic ganglia which innervate targets in the head are located in four main ganglia: the ciliary, pterygopalatine, submandibular and otic ganglia. Scattered microganglia may also be distributed along cranial nerves.

Where is the otic ganglion located?

Anatomical terms of neuroanatomy. [edit on Wikidata] The otic ganglion is a small parasympathetic ganglion located immediately below the foramen ovale in the infratemporal fossa and on the medial surface of the mandibular nerve. It is functionally associated with the glossopharyngeal nerve and innervates the parotid gland for salivation.

Where does the glossopharyngeal nerve arise?

The glossopharyngeal nerve originates in the medulla oblongata of the brain. It emerges from the anterior aspect of the medulla, moving laterally in the posterior cranial fossa. The nerve leaves the cranium via the jugular foramen. At this point, the tympanic nerve arises.

Which nerve passes through otic ganglion without relaying?

These fibers pass through otic ganglion (without relaying) and supply parotid gland via auriculotemporal. These fibers are mainly vasomotor. It is derived from the auriculotemporal nerve (branch of mandibular nerve).

Is the otic ganglion sympathetic or parasympathetic?

That’s why the otic ganglion, with its association to the salivary glands, is classified as parasympathetic. However, the ganglion also has roots from the sympathetic nervous system, and it contains sensory and motor nerve fibers, as well.