In this work, he and Catania describe the physiological response properties of neurons in the trigeminal ganglion, showing that the sense of touch in crocodilians surpasses those of human fingertips, despite being a thickly-scaled surface.
12.
Trigeminal neurons in head skin exhibit a competitive behavior and only when one of them is completely removed, for example the left trigeminal ganglion, allows the right ganglion neurites to cross midline and innervate left side of the head.
13.
It is usually expressed at high levels in two types of neurons, the nociceptive ( pain ) neurons at dorsal root ganglion ( DRG ) and trigeminal ganglion, and sympathetic ganglion neurons, which are part of the autonomic ( involuntary ) nervous system.
14.
The internal carotid plexus communicates with the trigeminal ganglion, the abducent nerve, and the pterygopalatine ganglion ( also named sphenopalatine ); it distributes filaments to the wall of the internal carotid artery, and also communicates with the tympanic branch of the glossopharyngeal nerve.
15.
BRN3A ( POU4F1 ) is a class IV POU domain-containing transcription factor highly expressed in the developing peripheral sensory nervous system ( dorsal root ganglia, trigeminal ganglion, and hindbrain sensory ganglia ), certain regions of the central nervous system, retinal neurons called ganglion cells, and in cells of the B-and T-lymphocytic lineages.
16.
For example, r2 has been shown to give rise to the trigeminal ganglion, while r4 has been shown to give rise to the geniculate gangion as well as spiral and Scarpa's ganglia . r5 and r6 gives rise to the abducens nerve, and the lower part of r6 and the upper part of r7 gives rise to the petrosal ganglion.
17.
It is the smallest of the three divisions of the trigeminal, and arises from the upper part of the trigeminal ganglion as a short, flattened band, about 2.5 cm . long, which passes forward along the lateral wall of the cavernous sinus, below the oculomotor and trochlear nerves; just before entering the orbit, through the superior orbital fissure, it divides into three branches, lacrimal, frontal, and nasociliary.
