HPS111 Lecture Notes - Lecture 5: Diazepam, Axon Hillock, Neuroglia

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Neurons and glial cells (mostly involved in providing nutrients and structural support to the nervous system: draw a neuron, label the dendrites, cell body, nucleus, axon hillock and axon, and nodes of. Covered with myelin, a white fatty substance that insulates the electrical signal: where do neurons interact with each other (i. e. what are the relevant parts of the neurons?) There is a tiny gap between the terminal buttons and dendrites of the next neuron, this gap is called the synapse. Unipolar; has one projection from the cell body which can be a dendrite or axon depending on its function. Bipolar; has two projections, known for their role in the visual system. Prototypical; most common type of neuron having many projections. Grey matter (on the outsideof the brain-the cortex-. Diffusion is a passive movement of a substance from an area of high concentration to low concentration. Semi permeable means that some things can pass through while some cant.

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