Intro.ppt - – Astrocytes – Oligodendrocytes Schwann...

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Neuroscience • Effort and approach to understanding the nervous system • Based on results obtained from – Genetics – Mol bio Cell bio – Anatomy – Physiology – Behavioral studies – psychology
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(Y)our challenge • “to integrate the diverse knowledge derived from these various levels of analysis into a more or less coherent understanding of brain structure and function .”
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Course Emphasis •Human •CNS •Cellular and molecular neurobiology
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Today’s Goals • Introduce and give overview of nervous system and organs comprising it • Introduce cells comprising nervous system
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Nervous System •What is it? –Anatomical •What does it do? –Functional
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Anatomical Divisions • Central Nervous System –Brain (including retina) –Spinal cord • Peripheral Nervous System –Everything else
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Functional Divisions •Sensory Systems •Motor Systems
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Cellular Components of Nervous System • Glia
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Unformatted text preview: – Astrocytes – Oligodendrocytes/ Schwann cells – Microglia – Ependyma • Neurons Astrocytes • Function – Maintain chemical balance in ECF of CNS – Neurochemical recycling – Formation of BBB Astrocytes in tissue culture Oligodendrocytes and Schwann Cells • Myelinate axons Microglia • Immune cells of CNS • Phagocytic • Cytokine-secreting – Modulate inflammation and cell death Ependyma •Secrete cerebrospinal fluid •Participate in formation of BBB Neurons • Morphology – Regular cellular features – Neuron-specific features • Axons • Dendrites – Special nomenclature, e.g. soma “Typical” neuron Morphologic Diversity Overall function of Neurons/ Nervous System •Take in information •Integrate it •Generate output Neuronal Circuits • Simple reflex circuit – Afferent – Efferent • More complexity – Interneurons • Still more complexity...
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This note was uploaded on 11/09/2011 for the course CHEM 2341 taught by Professor Staff during the Fall '11 term at Texas State.

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Intro.ppt - – Astrocytes – Oligodendrocytes Schwann...

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