| Autor: |
Letourneau, Janis G. |
| Zdroj: |
Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology; January 1976, Vol. 110 Issue: 1 p25-32, 8p |
| Abstrakt: |
1.Physiological mapping by recording with small electrodes in the fourth root of the crayfish (Procambarus clarkii) sixth abdominal ganglion demonstrates a somatotopic segregation of afferent axons associated with mechanoreceptors on the dorsal telson surface.2.Degeneration of axons resulting from local lesions in the periphery yields patterns of axon distribution in the fourth root that approximately agree with the physiological results.3.Physiological studies of the fifth root of the sixth ganglion demonstrate a similar segregation of fibers associated with the more caudal and more medial mechanoreceptors on the dorsal telson surface.4.The caudal limit of the fourth root receptive field is variable; it can include receptors that normally are innervated by the most lateral fibers in the fifth root, those closest to the fourth root. Thus the fiber distributions are contiguous, and the mechanism governing their connection with appropriate interneurons is independent of the root in which they travel to reach the ganglion. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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