Lecture 2 (Neuron Communication) PDF PowerPoint Presentation

Brain and Behaviour 1 – Professor Tim Andrews Lecture 2 How do neurons communicate information?  Outline An historical overview The resting membrane potential Forces that control the movement of ions Ion channels and i...

Brain and Behaviour 1 – Professor Tim Andrews Lecture 2 How do neurons communicate information?  Outline An historical overview The resting membrane potential Forces that control the movement of ions Ion channels and ion pumps The action potential Voltage-gated ion channels The synapse Release of neurotransmitters Neurotransmitters and neurotransmitter receptors Integrating synaptic potentials Q  Electrical signals in the brain – an historical perspective Luigi Galvanni Bandō Mitsugorō VIII and the puffer fish  Outline An historical overview The resting membrane potential Forces that control the movement of ions Ion channels and ion pumps The action potential Voltage-gated ion channels The synapse Release of neurotransmitters Neurotransmitters and neurotransmitter receptors Integrating synaptic potentials Neuron rces that control the movement of ions? K+ Cl- Animation: Resting membrane poten Resting Membrane Potential Sodium (Na+) Potassium (K+) pump Animation: Sodium Potassium Pump Sodium (Na+) Potassium (K+) pump  Outline An historical overview The resting membrane potential Forces that control the movement of ions Ion channels and ion pumps The action potential Voltage-gated ion channels The synapse Release of neurotransmitters Neurotransmitters and neurotransmitter receptors Integrating synaptic potentials Threshold Voltage-gated Na+ and K+ channels The action potential Animation: Action Potential The action potential The action potential is propogated along the axon Q  Outline An historical overview The resting membrane potential Forces that control the movement of ions Ion channels and ion pumps The action potential Voltage-gated ion channels The synapse Release of neurotransmitters Neurotransmitters and neurotransmitter receptors Integrating synaptic potentials Chemical signals in the brain – an historical perspective Synapse Neurotransmitter receptors in the postsynaptic cell Removal of neurotransmitter Animation: Synaptic Transmissio Synaptic Transmission  Outline An historical overview The resting membrane potential Forces that control the movement of ions Ion channels and ion pumps The action potential Voltage-gated ion channels The synapse Release of neurotransmitters Neurotransmitters and neurotransmitter receptors Integrating synaptic potentials Summation of postsynaptic potentials Animation: Summation of postsynaptic potent Summation of postsynaptic potentials