Kinesiology 3222A/B Lecture 1: Lecture Notes

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Central nervous system about 100 billion neurons brain spinal cord. Neural plasticity others might take on their role but you can"t regenerate. Transition between spinal cord and brain stem through the foramen magnum. Gets transferred to the cns through the spinal cord and to the brain. Effectors are the structures that do the action i. e. muscles that contract when things come to the brain it is afferent and when leaving it is efferent. Glia do not participate directly in synaptic interactions supportive role (supports neurons) insulation more numerous than neurons (3:1) Conducts signals from the periphery towards the cell body can have one or multiple. Accumulation of neurotransmitters neurotransmitters target of anterograde transport (towards the terminal) originator of retrograde transport once the neurotransmitters are used up they have to go back to the cell body. Prevents molecules circling in the vasculature from entering the brain. Collect the trash from dead and dying neurons.

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