PS267 Lecture Notes - Lecture 2: Neuroglia, Schwann Cell, Cerebral Cortex
Document Summary
Chapter 2: structure and function of the nervous system: cells of the nervous system, neural communication, the nervous system, the spinal cord, the brain, the cerebral cortex, development of the nervous system. Nerve culture (growing in dish from embryonic rat: 5. Multipolar neuron (more than 2 axons: your stereotypical mammalian neuron, three main parts, cell body (soma), dendrites, and axon, cell body contains the metabolic machinery that maintains the neuron. Intracellular fluid full of ions: also axon terminals (end of axons, dendrites branching extensions that receive inputs from other neurons. Many different forms, depending on type and location of neuron. Knobs on dendrites: spines: the receptors for neural signals, axon single process that extends from the cell body and represents the outburst side of the neuron. Cells of the nervous system: overview: axon hillock: where the cell body meets the axon; decides where action potential will be fired or not.
