An immunohistochemical study on the innervation of SP-IR nerves in the cerebral arteries of the bent-winged bat

K AndoS Arai


The overall distribution of substance P (SP) immunoreactive (IR) nerves surrounding the cerebral arteries of the bent-winged bat were investigated immunohistochemically. In this microchiropteran species, the walls from the vertebral artery to the caudal part of the basilar artery have considerably well-developed plexuses of SP-IR nerves, whereas no demonstrable SP-IR fibers were found in the rostral part of the basilar artery, and in more rostrally located arteries the nerve supply was very sparse or occasionally lacking. This innervation pattern has not yet been established for the cerebral arterial systems of other mammals that have been studied under normal conditions, but it is very similar to the pattern of SP-IR innervation observed in the guinea pig and cat of which the trigeminal ganglia have been destroyed. From the combination of this and other immunohistochemical findings, it is suggested that SP-IR nerves innervating the vertebral and basilar arteries of the bent-winged bat originate from the upper cervical dorsal root ganglia (DRG) and enter the cranial cavity along the vertebral artery and through the meninges.


Apr 1, 1966·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·R C Graham, M J Karnovsky
Jan 1, 1981·Journal of Cerebral Blood Flow and Metabolism : Official Journal of the International Society of Cerebral Blood Flow and Metabolism·R UddmanF Sundler
Aug 1, 1983·Neuroscience·L Y Liu-ChenM A Moskowitz
Jan 1, 1981·Journal of Cerebral Blood Flow and Metabolism : Official Journal of the International Society of Cerebral Blood Flow and Metabolism·L Edvinsson, J McCulloch

Related Concepts

Arterial System
Meningeal Disorder
Muscle Innervation, Function
Cranial Cavity Structure

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