CSB430H1 Study Guide - Final Guide: Olfactory Receptor Neuron, Olfactory Bulb, Neurogenesis
16 Jul 2018
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Document Summary
Changes in the brain overtime make a brain. Evolutionarily biology affects how we think about neurogenesis and brain development. Are divisions within each division of the brain; regions have similar function in living vertebrates. Tegmentum (sn, vta, pag, red nucleus, reticular formation) A (fish) b (frog) c (reptile) d (bird) e (cat) f (human) Part of rhombencephalon is very similar across all animals. Forebrain (consciousness, complex behaviour) very different across species. Only as you climb ladder of evolution, get sequential addition of parts of brain: more forebrain structures increased complexity of vertebrates. Developed nomenclature to describe structures relative to their evolutionary age e. g. neocortex (only in human, some in cat), paleocortex. Theory of sequential addition of brain parts = scala naturae. Are some common hindbrain structures found in all vertebrates. As animals become more complex, evolutionarily advanced, have more structures added sequentially (pallium = dorsal forebrain (incl. cerebral cortex) | sub-pallium = ventral forebrain)
