NEUROSCI 101 Lecture Notes - Lecture 6: Camillo Golgi, Ependyma, Cranial Nerves
17 May 2016
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All spinal nerves are both sensory and motor t. All cranial nerves provide information to and from the head and neck only f. All brains have the same blueprint but elaborations on that blueprint lead to brains with larger or smaller regions t. 4 types of glia: astrocytes, oligodendrocytes, ependymal cells (schwann cells in the. Astrocyte - star shaped, takes up chemicals and releases them back to axons. The neuron doctrine was championed by ramon y cajal, and the reticular theory was supported by camillo golgi. Microglia - phagocytosis, tries to digest parts of dead neurons during cell death phase. Oligodendroglia - provide the myelin insulation to neurons in the cns. Resting potential - more + ions outside the axon cell, more - ions inside the cell. Not expected b/c of principle of electrostatic attraction (opposite charges attract, like charges repel) or diffusion (ions seek equal distribution) Forces at work that maintain resting potential of -60 mv:
