PSY2061 Lecture Notes - Lecture 2: Small Molecule, Antiporter, Exocytosis
21 Aug 2018
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Document Summary
Be able to draw and label the major features of neurons. Be able to describe four types of glia. Microglia: very small cells that remove wastes as well as viruses, fungi, and other microorganisms (functions like part of immune system) Oligodendrocytes: in brain and spinal cord and are specialized types of glia that build the myelin sheaths that surrounding and insulate certain vertebrate actions (in cns) Schwann cells: specialized types of glia that build the myelin sheaths that surround and insulate certain vertebrate actions (in pns) Radial glia: guides the cell and axon during migration of neurons and their axons and dendrites during embryonic development. Intracellular electrodes are called microelectrodes: their tips are less than one- thousandth of a millimetre in diameter: when the tip of intracellular electrode is inserted into a neuron, a steady potential of about -70 millivolts (mv) is recorded.
