deep petrosal nerve

(redirected from sympathetic root of pterygopalatine ganglion)

deep pe·tro·sal nerve

[TA]
the deep petrosal branch of the internal carotid plexus, which joins the greater petrosal nerve at the entrance of the pterygoid canal forming the nerve of the pterygoid canal and thus provides postsynaptic fibers to the pterygopalatine ganglion.
Farlex Partner Medical Dictionary © Farlex 2012

deep pe·tro·sal nerve

(dēp pĕ-trō'săl nĕrv) [TA]
Branch of the internal carotid plexus, which joins the greater petrosal nerve at the entrance of the pterygoid canal forming the nerve of the pterygoid canal and thus provides postsynaptic fibers to the pterygopalatine ganglion.
Synonym(s): nervus petrosus profundus, radix sympathica ganglii pterygopalatini, sympathetic root of pterygopalatine ganglion.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

deep petrosal nerve

A bundle of postganglionic sympathetic axons from the superior cervical ganglion. These axons take the internal carotid nerve into the carotid canal in the skull, where they form the internal carotid plexus. From this plexus, the axons emerge as the deep petrosal nerve, which then joins the greater petrosal nerve in the vidian canal, en route to the pterygopalatine ganglion.
See also: nerve
Medical Dictionary, © 2009 Farlex and Partners