pterygopalatine ganglion

This nerve travels through the pterygoid canal to the pterygopalatine ganglion.

The fibres have synapses in the pterygopalatine ganglion.

Sympathetic postganglionic fibers from the deep petrosal nerve which do not synapse in pterygopalatine ganglion.

The pterygopalatine nerves (or sphenopalatine branches), two in number, descend to the pterygopalatine ganglion.

These neurons derive from the superior cervical ganglion and the pterygopalatine ganglion respectively.

The postganglionic PSN fibers leave the pterygopalatine ganglion in several directions.

Pterygopalatine ganglion (also known as the Sphenopalatine ganglion)

It then enters the pterygopalatine fossa and joins the posterior angle of the pterygopalatine ganglion.

It carries postsynaptic sympathetic nerve fibers to the pterygopalatine ganglion, also known as the sphenopalatine ganglion.

(The others are the submandibular ganglion, pterygopalatine ganglion, and ciliary ganglion).

It also supplies parasympathetic innervation to the nasal mucosa and the lacrimal gland via the pterygopalatine ganglion.

It also carries post-synaptic parasympathetic fibers (originating in the pterygopalatine ganglion) to the lacrimal nerve via a communication.

The third or pterygopalatine portion lies in the pterygopalatine fossa in relation with the pterygopalatine ganglion.

The pharyngeal nerve (pterygopalatine nerve) is a small branch arising from the posterior part of the pterygopalatine ganglion.

In contrast to their parasympathetic counterparts, sympathetic fibers do not synapse in the pterygopalatine ganglion, having done so already in the sympathetic trunk.

Although it is closely related to the pterygopalatine ganglion, it is still considered a branch of the maxillary nerve and does not synapse in the ganglion.

The greater palatine nerve (anterior palatine nerve) is a branch of the pterygopalatine ganglion that carries both general sensory and parasympathetic fibers.

Postganglionic parasympathetic fibres from pterygopalatine ganglion supply lacrimal gland and the mucosal glands of the nose, palate, and pharynx.

Together, greater petrosal and deep petrosal nerves form the nerve of the pterygoid canal (vidian nerve) and reach the pterygopalatine ganglion in the pterygopalatine fossa.

Some of these preganglionic parasympathetic fibers persist within the greater petrosal nerve as they exit the geniculate ganglion and subsequently synapse with neurons in the pterygopalatine ganglion.

The pterygopalatine ganglion (meckel's ganglion, nasal ganglion or sphenopalatine ganglion) is a parasympathetic ganglion found in the pterygopalatine fossa.

The flow of blood to the nasal mucosa, in particular the venous plexus of the conchae, is regulated by the pterygopalatine ganglion and heats or cools the air in the nose.

A separate group of PSN leaving from the pterygopalatine ganglion are the descending palatine nerves (CN V branch), which include the greater and lesser palatine nerves.

The mucous membrane receives sensory innervation by the posterior ethmoidal nerves, and postganglionic parasympathetic fibers of the facial nerve that synapsed at the pterygopalatine ganglion which control secretion of mucous.

The pterygopalatine ganglion (of Meckel), the largest of the parasympathetic ganglia associated with the branches of the maxillary nerve, is deeply placed in the pterygopalatine fossa, close to the sphenopalatine foramen.