Membrane Potentials, Action Potentials and Synaptic Transmission notes
15 notes by 10 users
This page gathers over 10 community-made notes on membrane physiology, action potential channels and synaptic strength. Nearly all are at university level, for university students practising these topics and teachers looking for material to use. Browse the notes to get started.
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- Membrane Transport8
- Electrochemical Gradients and Equilibrium Potentials8
- Ion Channels23
- Excitable Cells12
- Resting Membrane Potential32
- Action Potential Generation and Phases63
- Action Potential Propagation and Nerve Conduction9
- Synaptic Transmission17
- Neurotransmitters and Receptors14
- Neuromuscular Junction8
- Synaptic Plasticity9
- Spinal Reflexes10
Notes
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Induction of LTP Figure 10–7. Activation of NMDA receptors, modulated by other ionotropic amino acid receptors, triggers the induction of LTP in principal cells of area CA1 and dentate gyrus. A. Low-frequency stimulation of Schaffer c...
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mGluR LTD Schematic model of the molecular mechanisms that regulate ionotropic glutamate receptor distribution during hippocampal mGluR-LTD induction and expression. Activation of group I mGluRs leads to dephosphorylation and a...
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Synaptic strength Synaptic strength and importance What is synaptic strength?It is the potential instigated in the presynaptic neuron relative to action potential threshold.2 situations could occur:1. EPSP (excitatory post synaptic pot...
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Physiology Quiz Sleep – Lecture 28 Active process: body rests, hormones get secreted to shut down, cardiovascular system shuts down during REM sleep. Theories on purpose of sleep: Lets body rest Lets brain recover and regenerat...
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Ca in short-term plasticity - created from Mind Map SHORT-TERM DEPRESSION depletion of the readily releasable pool (RRP) reduced Ca entry light-induced uncaging of Ca2+ remaining vesicles vesicles- near or far from Ca Channels changes in action potential waveform feedb...
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Pain- general
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Expression of LTP Figure 10–8. Signal transduction mechanisms in early LTP. The trigger for the induction of LTP is Ca2 permeating through the NMDA receptor. This is amplified by Ca2 release from Ca2/IP3- sensitive stores. The amplifie...
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Practical Test Lecture Breakdown Learn the diagram on the connections from the nerve and electrode.The nerve was taken kept moisturized. left side is thick, right side is thin. Cathode is at thick end and is stimulated and recorded at the anode to me...
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Neurons -small/nonpolar/fat soluble (hydrophobic): intercellular mechanism *polar bears are big and like water - bind on surface (response happens immediately) - inside cell (takes a delayed amount of time) What is the first ...
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Resting Potential Note The inside of the neurone is negatively charged relative to the outside because of an unequal distribution of charged ions. On the outside being Na+, Cl- and Ca2+ and the inside K+ and organic anions. This unequ...
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Membrane Physiology Describe how the structure (lipids and proteins) of a cell membrane facilitates its function (i.e., being semi-permeable). Define diffusion. Define osmosis. Describe the difference between isotonic, hypotonic, and hyp...
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Techniques When an EPSP is generated in the dendrites of a neuron an extracellular electrode detects a negative voltage difference, resulting from Na+ currents flowing inside the neuron’s cytoplasm. The current completes a loop ...
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Neurotransmitters - created from Mind Map Acetylcholine Excitatory NT Inhibitory in heart Two types of receptors: Nicotinic and Muscarinic Monoamines Catecholamines Indolamine Monoamine Oxidase and Inhibitor Norepinephrine Epinephrine Dopamine Serotonin Amino...
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channels involved at each step of AP 1) resting - Na and K closed 2) depolarize to threshold - some Na open, all K closed 3) depolarize to peak - many Na open, some K begin to open 4) repolarize to rest - most Na inactivate, ma...
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Untitled Coma Chapter 11 Abstract Coma = unarousable unconsciousness - dysfunction in ascending reticular activating system (ARAS) -
More Membrane Potentials, Action Potentials and Synaptic Transmission resources
About membrane potentials, action potentials and synaptic transmission notes
GoConqr OriginalMembrane potentials, action potentials and synaptic transmission notes
These notes offer different starting points within the unit. Membrane Physiology covers membrane structure and transport, while Synaptic strength introduces excitatory and inhibitory postsynaptic potentials. The note on channels involved at each step of the action potential provides another route into the material.
Working with the notes
Start with Membrane Physiology if you want to revisit membrane structure. For synaptic plasticity, compare Induction of LTP with Expression of LTP; their excerpts focus on different parts of the process. The note mGluR LTD looks at mechanisms involved in hippocampal mGluR-LTD.
After reading a note, write down the points you can recall, then check them against the resource. If you want a visual overview or a chance to test your recall, switch to a mind map or quiz on the unit page. Choose a note that matches the topic you are revising.
Frequently asked questions
Which note could I start with?
Membrane Physiology is a starting point for revisiting membrane structure and transport. If you are concentrating on synapses, Synaptic strength introduces excitatory and inhibitory postsynaptic potentials. For action potentials, there is also a note on the channels involved at each step.
Do the notes cover synaptic plasticity?
Yes. Induction of LTP and Expression of LTP address different parts of long-term potentiation. There is also mGluR LTD, which discusses mechanisms involved in hippocampal mGluR-LTD, and a note on calcium in short-term plasticity. Together, they offer several starting points for revision.
Are these notes free to use?
Yes. Every note listed here is free to open and study without an account. The resources were made by GoConqr users. A free account also lets you save quiz scores and make your own quizzes, mind maps, flashcards and notes.