lecture 3 resting membrain potential

lecture 3 resting membrain potential - 9/10/2008...

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9/10/2008 1 Lecture 3: Resting Membrane Potential Overview 1. Review 2. Axoplasmic transport 3. Types of Neurons 4. Glial cells 5. Resting membrane potential 6. Forces affecting ion movement Review Dualism vs Monism Nervous system consists of two parts: Central Nervous System (brain and spinal cord) Peripheral Nervous System Neuron Main function is to transmit information in the form of an electrochemical signal Three main parts Dendrites tree like branches specialized to receive and transmit Dendrites – tree like branches specialized to receive and transmit electrical signals Soma – metabolic center (gene expression and protein synthesis). Axon – specialized to transmit electrical signals Starts at axon hillock and ends at the terminal button (bouton)
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9/10/2008 2 Transcription and Translation Fig 3.1 Fig 3.2 Synthesis of proteins needed for growth and maintenance of cell. As a general rule, cells will only manufacture those proteins needed for its specific function. . Liver cells will manufacture enzymes to metabolize toxins . Neurons will manufacture enzymes needed to synthesize neurotransmitters Enzyme: is a catalyst, a substance that controls a specific chemical reaction. It takes part in the reaction but it is not affected by it. Almost all are proteins. Review Organelles found in the neuron Nucleus (gene expression) Rough endoplasmic reticulum (protein synthesis) Ribosomes do the actual synthesis Golgi apparatus (packaging and protein processing) Mitochondria (ATP–cell energy source)
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This note was uploaded on 02/05/2011 for the course PSY 370 taught by Professor Zalava during the Fall '09 term at CSU Long Beach.

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lecture 3 resting membrain potential - 9/10/2008...

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