01:146:356 Chapter Notes - Chapter 9: Explicit Memory, Brain-Derived Neurotrophic Factor, Salivary Gland
23 Mar 2016
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Chapter nine: cns: emergent properties of neural networks. Affective behavior is related to feeling and emotion, cognitive behavior is related to thinking: evolution of nervous systems. Cnidaria had a nervous system consisting of a nerve net. Flatworms have a primitary brain and nerve cords that go from brain and enervate the body. In insects, brain is compartementalized and there are more complex behaviors such as socialism, division of labor, and communication with one another (ants) octopus has most sophisticated brain in invertebrates. Vertebrates have the greatest change in forebrain region with cerebrum o. Cerebellum coordinating movement and balance birds and humans: anatomy of the cns. In all vertebrates, cns consists of layered neural tissue surrounding a fluid-filled central cavity lined with epithelium. 4 weeks: embryo shows anterior end of neural tube which has specialized into forebrain, midbrain, and hindbrain. 6 weeks: neural tube has differentiated into brain regions (cerebrum, diencephalon, midbrain, cerebellum, pons, medulla oblongata)
