vidian nerve
Medical Definition of Vidian nerve
: a nerve formed by the union of the greater petrosal and the deep petrosal nerves that passes forward through the pterygoid canal in the sphenoid bone and joins the pterygopalatine ganglion.
What does the Vidian nerve innervate?
The vidian nerve therefore contains both the parasympathetic and the sympathetic innervation to the nasal mucosa. The postganglionic sympathetic nerves in the mammalian nose typically contain catecholamines, but may also contain adenosine 5′-triphosphate (ATP) and neuropeptides, most notably neuropeptide Y (NPY).
How is Vidian nerve formed?
The vidian nerve is formed by the confluence of the greater superficial petrosal and deep petrosal nerves and travels in the pterygoid canal carrying the parasympathetic fibers, which synapse in the pterygopalatine ganglion, and the postganglionic fibers are distributed with the branches of the maxillary nerve.
Where is the Vidian nerve?
Vidian nerve is formed at the junction of greater petrosal and deep petrosal nerves. This area is located in the cartilagenous substance which fills the foramen lacerum. From this area it passes forward through the pterygoid canal accompanied by artery of pterygoid canal.
What goes in Vidian canal?
Contents. It transmits the nerve of pterygoid canal, (Vidian nerve), the artery of the pterygoid canal (Vidian artery), and the vein of the pterygoid canal (Vidian vein).
How is Vidian Neurectomy done?
Using a 70-degree endoscope, the vidian nerve is identified on the lateral aspect of the floor of the sphenoid sinus. If not easily visible, the canal is deroofed with a pricking probe, Kerrison’s rongeur, or drill. Using an angled probe, the nerve is transected, and a segment of the nerve is removed.
Where is the otic ganglion?
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.
What is great auricular nerve?
The great auricular nerve is a sensory branch from the cervical plexus that crosses the anterior border of the sternocleidomastoid muscle to supply sensation to the skin inferior to the external auditory meatus.
What is geniculate ganglion?
The geniculate ganglion is a sensory ganglion of the facial nerve (CN VII). It contains the cell bodies of the fibers responsible for conducting taste sensation from the anterior two-thirds of the tongue.
What muscles does facial nerve innervate?
Special visceral efferent (SVE) fibers (branchiomotor) are a major component of the facial nerve. Their function is to innervate the muscles of facial expression, the stapedius muscle, the stylohyoid muscle, and the posterior belly of the digastric muscle.
Which is called nerve of Wrisberg?
The nervus intermedius, also known as intermediate nerve of Wrisberg, is a part of the facial nerve (CN VII) which contains somatic sensory, special sensory, and visceral motor (secretomotor) fibers 1.
What goes thru the pterygoid canal?
The vidian artery and corresponding nerves pass through the pterygoid canal and is a branch of maxillary artery [1]. The vidian artery joints parasympathetic fibers to the sphenopalatine ganglion in the upper pterygopalatine fossa [16].
What passes through the Pterygopalatine Canal?
The greater palatine canal (or pterygopalatine canal) is a passage in the skull that transmits the descending palatine artery, vein, and greater and lesser palatine nerves between the pterygopalatine fossa and the oral cavity. Left palatine bone.
What is the mandibular nerve?
The mandibular nerve is the only branch of the trigeminal nerve that contains a motor root. In the infratemporal fossa, near the skull base, the main trunk immediately gives off the sensory meningeal branch and motor muscular branches to the medial pterygoid, tensor tympani, and tensor veli palatini muscles.
What is foramen ovale skull?
Foramen ovale (plural: foramina ovalia) is an oval shaped opening in the middle cranial fossa located at the posterior base of the greater wing of the sphenoid bone, lateral to the lingula.
