Membrane potentials change with permeability change 1

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Unformatted text preview: when broken locally Conduction • Electrochemical gradient Figure 5-29: Separation of electrical charge 29: C. Membrane Potentials: Change with Permeability Change 1. Resting 2. Equilibrium Equilibrium 3. Channel opening 3. a) Voltage gated Voltage b) ATP gated (leak) b) ATP 8 2/2/2010 1.) Membrane Potentials: 1.) Potassium (major contributor!!) Potassium Figure 5-31: Potassium equilibrium potential Membrane Potentials: Membrane Potassium Potassium Figure 5-33 9 2/2/2010 2.) Membrane Potentials: Sodium 2.) Membrane Sodium Figure 5-32: Sodium equilibrium potential Figure 5-34 10 2/2/2010 **Summary: **Summary: Vm-regulated Response ** Figure 5-35: Insulin secretion and membrane transport processes Chapter 8 Neurons: Neurons: Cellular and Network Properties Cellular 11 2/2/2010 8.1) Organization of the 8.1) Nervous System Nervous 1. Rapid communication for homeostatic balance. 2. Emergent properties of intelligence & emotion. 3. Central Nervous system (CNS) a) Brain b) Spinal Cord 4. Peripheral Nervous system (PNS) a) Afferent (sensory) nerves - APNS Afferent b) Efferent (response) nerves - EPNS Efferent 1. Autonomic Neurons (visceral system) a) Sympathetic – “Fight or Flight” Sympathetic b) Parasympathetic – “Rest and Digest” Parasympathetic • Both antagonize each other on target organs: smoo...
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This document was uploaded on 03/18/2010.

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