What is otic ganglion?
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 does the otic ganglion contain?
The otic ganglion is one of the four parasympathetic ganglia of the head. A collection of sensory neurons of the mandibular nerve, it works with the glossopharyngeal nerve and mandibular nerves to provide function to multiple salivary glands. It also has a motor function in chewing.
What passes through otic ganglion?
It contains post-ganglionic fibers arising in the superior cervical ganglion. The fibers pass through the ganglion without relay and reach the parotid gland via the auriculotemporal nerve. They are vasomotor in function.
Why is it called the otic ganglion?
It was called ‘otic’ as it was large in long-eared mammals such as donkey, rabbit, horse, and other ruminants. The otic ganglion has parasympathetic, sympathetic, sensory, and motor roots.
What is otic?
Neomycin, polymyxin, and hydrocortisone otic combination is used to treat outer ear infections caused by certain bacteria. It is also used to treat outer ear infections that can occur after certain types of ear surgery. Neomycin and polymyxin are in a class of medications called antibiotics.
What is the purpose of the ganglia?
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 does the ciliary ganglion do?
Nerves from the ciliary ganglion innervate the muscles that constrict the pupil, a hole in the iris that lets light enter the eye. Other fibers from the ciliary ganglia go to muscles that control the shape of the lens in the eye.
What organs receive fibers from ciliary ganglion?
Nerve fibers leave the brain and enter the ganglia. These fibers synapse (a junction between nerves where they communicate) with neurons going to the eye. Nerves from the ciliary ganglion innervate the muscles that constrict the pupil, a hole in the iris that lets light enter the eye.
What is otic use?
Acetic acid is used to treat an outer ear infection (external otitis). It works by stopping the growth of bacteria and fungus. Treating the infection reduces pain and swelling in the ear.
What is otic medication?
Otic preparations are products applied to or in the ear to treat conditions of the external and middle ear. These products are used to treat dermatitis of the ear, cerumen build up and ear infection.
What is the function of the otic ganglion?
The otic ganglion is one of the four parasympathetic ganglia of the head. A collection of sensory neurons of the mandibular nerve, it works with the glossopharyngeal nerve and mandibular nerves to provide function to multiple salivary glands. It also has a motor function in chewing.
How is the otic ganglion of a rat different from man?
The otic ganglion of the rat differs from that of man in terms of its nervous connections. In man preganglionic parasympathetic fibres reach the otic ganglion via the lesser superficial petrosal nerve, which arises from the tympanic plexus found in the mucosa over the promontory of the medial wall of the middle ear.
What is the function of the optic ganglion?
Otic ganglion is a parasympathetic ganglion which is a relay station for secretomotor fibers to parotid gland. It is 2-3 mm in size and oval-shaped.
What nerve innervates the otic ganglion?
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.