Sphenopalatine
Sphenopalatine may refer to: * sphenopalatine artery, an artery of the head, commonly known as the artery of epistaxis * sphenopalatine ganglion (or "pterygopalatine ganglion") * sphenopalatine nerves * sphenopalatine foramen The sphenopalatine foramen is a foramen in the skull that connects the nasal cavity with the pterygopalatine fossa. Structure The processes of the superior border of the palatine bone are separated by the ''sphenopalatine notch'', which is convert ...

Sphenopalatine Artery
The sphenopalatine artery (nasopalatine artery) is an artery of the head, commonly known as the artery of epistaxis. Course The sphenopalatine artery is a branch of the maxillary artery which passes through the sphenopalatine foramen into the cavity of the nose, at the back part of the superior meatus. Here it gives off its posterior lateral nasal branches. Crossing the under surface of the sphenoid, the sphenopalatine artery ends on the nasal septum as the posterior septal branches. Here it will anastomose with the branches of the greater palatine artery. Clinical significance The sphenopalatine artery is the artery responsible for the most serious, posterior nosebleeds (also known as epistaxis). It can be ligated surgically or blocked under image guidance with minimally invasive techniques by interventional radiologist using tiny microparticles to control such nosebleeds. See also *Kiesselbach's plexus Kiesselbach's plexus is an anastomotic arterial network (plexus) of four ...
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Sphenopalatine Ganglion
The pterygopalatine ganglion (aka Meckel's ganglion, nasal ganglion, or sphenopalatine ganglion) is a parasympathetic ganglion found in the pterygopalatine fossa. It is largely innervated by the greater petrosal nerve (a branch of the facial nerve); and its postsinaptic axons project to the lacrimal glands and nasal mucosa. 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. It is one of four parasympathetic ganglia of the head and neck, the others being the submandibular ganglion, otic ganglion, and ciliary ganglion. Structure 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. It is triangular or heart-shaped, of a reddish-gray color, and is situated just below the maxillary nerve as it cr ...
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Sphenopalatine Nerves
The two pterygopalatine nerves (or sphenopalatine branches) descend to the pterygopalatine ganglion. 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. It is found in the pterygopalatine fossa In human anatomy, the pterygopalatine fossa (sphenopalatine fossa) is a fossa in the skull. A human skull contains two pterygopalatine fossae—one on the left side, and another on the right side. Each fossa is a cone-shaped paired depression deep .... Additional images File:Gray778.png, Distribution of the maxillary and mandibular nerves, and the submaxillary ganglion. References Maxillary nerve {{Neuroanatomy-stub ...
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