Gravity receptors: an ultrastructural basis for peripheral sensory processing.

M D Ross; K Donovan

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PubMed · 11539018

Gravity receptors: an ultrastructural basis for peripheral sensory processing.

M D Ross·K Donovan

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Abstract

Our ultrastructural study of serial sections has shown that type II hair cells of the anterior part of the utricular macula are integrated into the afferent neural circuitry of type I cells, which are arranged in clusters. Additionally, there exists a complex system of intramacularly originating efferent-type nerve fibers and terminals. The findings taken together suggest that, on morphological grounds, complex processing of sensory information occurs in gravity receptors. Asymmetry of such a complex system may contribute to motion and Space-motion sickness.

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Acoustic Maculae Animals Gravity Sensing Hair Cells, Vestibular Microscopy, Electron Peripheral Nervous System Rats Rats, Sprague-Dawley Saccule and Utricle NASA Discipline Neuroscience NASA Discipline Number 40-10 NASA Program Space Biology Non-NASA Center Journal Article Research Support, U.S. Gov't, Non-P.H.S.Research Support, U.S. Gov't, P.H.S.

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M D Ross, K Donovan. 1984. Gravity receptors: an ultrastructural basis for peripheral sensory processing.. https://pubmed.ncbi.nlm.nih.gov/11539018/

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