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Innervation of human trigeminal nerve blood vessels
E Smoliar1, A Smoliar, V S Belkin
1Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.
Cells, Tissues, Organs
|August 26, 1999
Summary
Researchers discovered extensive nerve networks within human trigeminal nerve blood vessels. These findings highlight complex neural interconnections and sensory innervation of these vital vascular structures.
Area of Science:
- Neuroscience
- Vascular Biology
- Histology
Background:
- The trigeminal nerve is crucial for facial sensation and motor function.
- Innervation patterns of the trigeminal nerve's vascular supply are not fully understood.
Purpose of the Study:
- To investigate the detailed innervation of intraneural blood vessels within the human trigeminal nerve and ganglion.
- To characterize the types of neural plexuses and receptors present in these vascular structures.
Main Methods:
- Histological examination of human trigeminal nerve and ganglion samples.
- Silver nitrate impregnation and Falck-Hillarp treatment for neural visualization.
- Analysis of neural plexuses and vascular receptors.
Main Results:
- A rich and complex innervation was observed within the intraneural blood vessels of the trigeminal nerve.
- Neural plexuses were identified in the arterioles and venules of the trigeminal ganglion capsule, epineurium, and perineurium.
- Polyvalent tissue-vascular receptors and adrenergic neural plexuses were predominant in the vascular walls.
Conclusions:
- The human trigeminal nerve's vascular system exhibits intricate neural connections.
- Sensory innervation of these vessels involves specialized receptors and adrenergic plexuses.
- These findings contribute to understanding neurovascular interactions in the trigeminal system.