BIOL 527 Lecture Notes - Lecture 9: Anterior Grey Column, Vestibulospinal Tract, Proprioception

• School: Towson University
• Department: Biology
• Course: BIOL 527
• Professor: Laurie Williams-Hogarth

Document Summary

Pathways: subconscious proprioceptive input is going to activate a 1st order neuron whose cell body is in the dorsal root ganglion. 2) the axon from the first order neuron is going to synapse on a 2nd order neuron whose cell body is in the dorsal horn. 3) these axons then form the dorsal root 4) the axons from the 2nd order neuron stay on the ipsilateral (same side of the body) and travels up the lateral white column forming the posterior cerebellar tract. 5) the axons go up the spinal cord, through the brainstem, and passes through the inferior cerebellar peduncles where it synapses on a target neuron: the target neuron is in the cerebellar hemisphere. Friedrichs ataxia-inherited disease of spinocerebellar tracts intentional tremor-profound incoordination of the arms ataxia- unsteady, wide-base gait begins in childhood-wheelchair bound by 20 years. Nystagmus-make repetitive, uncontrolled movements of the eye.