Muscle Receptor Organs in the Crayfish Abdomen: A Student Laboratory Exercise in Proprioception
Open Access
- 18 November 2010
- journal article
- research article
- Published by MyJove Corporation in Journal of Visualized Experiments
- No. 45,p. e2323
- https://doi.org/10.3791/2323
Abstract
The primary purpose of this experiment is to demonstrate primary sensory neurons conveying information of joint movements and positions as proprioceptive information for an animal. An additional objective of this experiment is to learn anatomy of the preparation by staining, dissection and viewing of neurons and sensory structures under a dissecting microscope. This is performed by using basic neurophysiological equipment to record the electrical activity from a joint receptor organ and staining techniques. The muscle receptor organ (MRO) system in the crayfish is analogous to the intrafusal muscle spindle in mammals, which aids in serving as a comparative model that is more readily accessible for electrophysiological recordings. In addition, these are identifiable sensory neurons among preparations. The preparation is viable in a minimal saline for hours which is amenable for student laboratory exercises. The MRO is also susceptible to neuromodulation which encourages intriguing questions in the sites of modulatory action and integration of dynamic signals of movements and static position along with a gain that can be changed in the system.This publication has 31 references indexed in Scilit:
- Tactile/proprioceptive integration during arm localization is intact in individuals with Parkinson's diseaseNeuroscience Letters, 2010
- Force Regulation of Ankle Extensor Muscle Activity in Freely Walking CatsJournal of Neurophysiology, 2009
- The effects of serotonin and ecdysone on primary sensory neurons in crayfishMicroscopy Research and Technique, 2003
- Regeneration and molting effects on a proprioceptor organ in the dungeness crab,Cancer magisterJournal of Neurobiology, 1994
- Stimulus-response properties of the slowly adapting stretch receptor neuron of the crayfishActa Physiologica Scandinavica, 1991
- Potential-dependent potassium currents in the rapidly adapting stretch receptor neuron of the crayfishActa Physiologica Scandinavica, 1991
- Stretch-activated current through single ion channels in the abdominal stretch receptor organ of the crayfish.The Journal of general physiology, 1989
- Ionic basis of the receptor potential in primary endings of mammalian muscle spindles.The Journal of general physiology, 1978
- The fine structure of the PD proprioceptor ofCancer pagurus. I. The receptor stand and the movement sensitive cellsProceedings of the Royal Society of London. B. Biological Sciences, 1973
- Reflex relationships of the abdominal stretch receptors of the crayfish. I. Feedback inhibition of the receptorsJournal of Cellular and Comparative Physiology, 1961