lecture_17 - Nervous systems Organisation of nervous...

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Unformatted text preview: Nervous systems Organisation of nervous systems • Peripheral vs. Central Nervous Systems Fig. 8.1/ 7.1 Central nervous system • White vs. gray matter – White matter – bundles of axons and myelin sheaths – Gray matter – neuronal cell bodies and dendrites Fig. 8.5/ 7.5 Central nervous system • Meninges • Blood-brain barrier Fig. 8.6/ 7.6 Fig. 11.10 Central nervous system • Meninges • Blood-brain barrier – Breakdown in multiple sclerosis http://www.emedicine.com/neuro/topic228.htm Central nervous system • Brain regions in vertebrates – Hindbrain – Midbrain – Forebrain Fig. 8.7/ Central nervous system • Brain regions in vertebrates – Hindbrain – Midbrain – Forebrain • Ventricles – cavities that remain from neural tube • Variation in brain size is due to relative sizes of hind-, mid-, and forebrain Fig. 8.10 Fig. 8.9/ 7.9 Central nervous system • Brain regions in vertebrates – Hindbrain – Midbrain – Forebrain • In mammals, – outer layer of forebrain...
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This note was uploaded on 11/05/2011 for the course BISC 305 taught by Professor Christians during the Fall '11 term at Simon Fraser.

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lecture_17 - Nervous systems Organisation of nervous...

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