NSCI320 Study Guide - Midterm Guide: Waves, Auditory Cortex, Suprachiasmatic Nucleus
25 Mar 2016
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Document Summary
Thalamus-sensory receptors to brain and relays information to higher association areas. Schwann cells-function is similar to oligodendrocytes: oligodendrocytes can create myelin sheaths for multiple cells, not schwann cells. Post central sulcus-senses, touch; pre central sulcus-motor. Coronal brain structures: hippocampus-bottom corner left and right, caudate nucleus-above corpus callosum, thalamus-middle on sides of cerebral aqueduct, putamen-down near hippocampus. Men->youth & attractiveness, women-> power & earning capacity. Astrocytes=largest glial cells & also cover outer surfaces of blood vessels & play role in controlling blood brain barrier. Efferent axons are always directed away from the brain and clusters of cell bodies in the cns are called nuclei. Epsp produced when natrium channel opens (not natrium & kalium: depolarization=na+ ions enter cell, hyperpolarization=k+ ions leave cell. Metabotropic receptor=more prevalent, slower than ionotropic receptors, associated with g-proteins=all of the above. Hyperpolarization (descending phase) of action potential occurs when potassium ions leave the cell.
