KIN242 Lecture Notes - Lecture 1: Neuroglia, Synaptogenesis, Neurogenesis

• School: University of Waterloo
• Department: Kinesiology
• Course: KIN242
• Professor: Kit Beyer

Document Summary

Internal & external environment: sensation, monitors stimuli via receptors, integration (processing, process & interpret sensory info to determine appropriate response, action, activate muscle and/or glands. 2 types of cells: neurons, glial cells (neuroglia) Damage (via disease or injury) to neurons and/or glial cells (cid:314) results in motor/movement disorder. Function: responsible for signal transmission: receive, conduct, send signals via electrochemical communication. Axon terminals: sends message to another cell at the synapse. Synapse: space between 2 communicating cells: sends signal to another cell via neurotransmitters, neurotransmitters: chemical messengers that carry info. 3 types of neurons: motor (efferent) neuron. Input from neuron: output to muscle, sensory (afferent) neuron, output to neuron, interneuron. 8 functions: physical support, regulation- environment & homeostasis, regulates ca2+ at synapse which is involved in the release of neurotransmitters. Insulation (myelination of neural axons: homeostasis (nutrients, oxygen, chemical gradients, pathogen removal, part of immune system instead of nervous system, communication (with other glial cells & neurons, synaptogenesis, plasticity (neurogenesis)