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Morphological Study of Neurons in the Trigeminal Ganglion


Affiliations
1 Research Scholar cum Assistant professor, Department of Anatomy, Madha Medical College, Bharath Institute of Higher Education and Research, Chennai, Tamilnadu, India
2 Associate professor, Department of Anatomy, Shri Balaji Medical College, Chennai, India
3 Professor & Head, Department of Anatomy, Saveetha Medical College, Chennai, India
4 Associate professor, Department of Anatomy, AIIMS, Mangalagiri, India
     

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The pseudounipolarneurons in the trigeminal ganglia carry sensation from the face to the brainstem. These neurons vary in its sizes that carry specific sensations. In this study trigeminal ganglion neurons are classified based on its diameters in to three types namely large, medium, small sized with the help of histomorphometry. The small sized neurons of trigeminal ganglion modulate pain sensation in migraine. To classify the trigeminal ganglion neurons in to large, medium and small sized and to study the diameter of the neurons in the trigeminal ganglion. Neurons in the trigeminal ganglion which is also sensory ganglion homologues to dorsal root ganglion were classified based on its diameter in to small (approx. > 22). Most nociceptors are responding to touch and pressure, thermal and chemical stimuli. Large neurons thatis mainly nociceptive.

Keywords

Pseudounipolar neurons, trigeminal ganglion, histomorphometry.
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  • Morphological Study of Neurons in the Trigeminal Ganglion

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Authors

T. Jeevapriya
Research Scholar cum Assistant professor, Department of Anatomy, Madha Medical College, Bharath Institute of Higher Education and Research, Chennai, Tamilnadu, India
R. Archana
Associate professor, Department of Anatomy, Shri Balaji Medical College, Chennai, India
Gunapriya Raghunath
Professor & Head, Department of Anatomy, Saveetha Medical College, Chennai, India
P.K. Sankaran
Associate professor, Department of Anatomy, AIIMS, Mangalagiri, India

Abstract


The pseudounipolarneurons in the trigeminal ganglia carry sensation from the face to the brainstem. These neurons vary in its sizes that carry specific sensations. In this study trigeminal ganglion neurons are classified based on its diameters in to three types namely large, medium, small sized with the help of histomorphometry. The small sized neurons of trigeminal ganglion modulate pain sensation in migraine. To classify the trigeminal ganglion neurons in to large, medium and small sized and to study the diameter of the neurons in the trigeminal ganglion. Neurons in the trigeminal ganglion which is also sensory ganglion homologues to dorsal root ganglion were classified based on its diameter in to small (approx. > 22). Most nociceptors are responding to touch and pressure, thermal and chemical stimuli. Large neurons thatis mainly nociceptive.

Keywords


Pseudounipolar neurons, trigeminal ganglion, histomorphometry.



DOI: https://doi.org/10.37506/v11%2Fi2%2F2020%2Fijphrd%2F194886