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Questions and Answers
Which ion flows through channels opened by glutamate and acetylcholine?
Which ion flows through channels opened by glutamate and acetylcholine?
What type of receptor is GABA?
What type of receptor is GABA?
How many subunits do G proteins have?
How many subunits do G proteins have?
What triggers metabolic processes, genetic transcription, and new protein creation?
What triggers metabolic processes, genetic transcription, and new protein creation?
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What is the major excitatory neurotransmitter in the brain?
What is the major excitatory neurotransmitter in the brain?
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How do neurons communicate through receptor binding onto glutamate metabotropic receptors?
How do neurons communicate through receptor binding onto glutamate metabotropic receptors?
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What do psychoactive drugs change in neuron communication?
What do psychoactive drugs change in neuron communication?
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What occurs due to a blood clot in a specific area of the brain?
What occurs due to a blood clot in a specific area of the brain?
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What does neurophysiology focus on?
What does neurophysiology focus on?
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How can neurotransmitters change in strength based on experience?
How can neurotransmitters change in strength based on experience?
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What is the resting membrane potential?
What is the resting membrane potential?
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How do neurons communicate with each other?
How do neurons communicate with each other?
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What maintains the resting membrane potential?
What maintains the resting membrane potential?
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What initiates the action potential?
What initiates the action potential?
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What is the role of myelin in neural conduction?
What is the role of myelin in neural conduction?
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What requires energy in the form of ATP?
What requires energy in the form of ATP?
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What divides the refractory period into absolute and relative periods?
What divides the refractory period into absolute and relative periods?
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What is the difference between electrical gradient and concentration gradient?
What is the difference between electrical gradient and concentration gradient?
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What supports the structure and communication of neurons?
What supports the structure and communication of neurons?
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What technique is used to study neural activity?
What technique is used to study neural activity?
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What is responsible for maintaining the resting membrane potential?
What is responsible for maintaining the resting membrane potential?
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What is the function of the myelin sheath?
What is the function of the myelin sheath?
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What happens when the depolarization reaches a threshold?
What happens when the depolarization reaches a threshold?
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What are the gaps where the action potential is regenerated along the axon called?
What are the gaps where the action potential is regenerated along the axon called?
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What prevents the continuous firing of neurons?
What prevents the continuous firing of neurons?
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What can lead to disorders like multiple sclerosis and decreased neural communication efficiency?
What can lead to disorders like multiple sclerosis and decreased neural communication efficiency?
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What speeds up the propagation of charge along the axon by allowing action potential to jump between nodes?
What speeds up the propagation of charge along the axon by allowing action potential to jump between nodes?
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What involves the integration of multiple inputs from presynaptic neurons, which can be both temporal and spatial?
What involves the integration of multiple inputs from presynaptic neurons, which can be both temporal and spatial?
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What is responsible for the communication between neurons, involving postsynaptic potentials, synapses, and neurotransmitters?
What is responsible for the communication between neurons, involving postsynaptic potentials, synapses, and neurotransmitters?
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What encodes and affects signals, with different neurotransmitters affecting different receptors?
What encodes and affects signals, with different neurotransmitters affecting different receptors?
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Study Notes
Neurophysiology: Key Concepts and Processes
- Neurophysiology focuses on how neurons communicate through action potentials and electrochemical signals
- Neurochemistry deals with the communication between neurons, involving postsynaptic potentials, synapses, and neurotransmitters
- Receptors encode and affect signals, with different neurotransmitters affecting different receptors
- Resting membrane potential is maintained by phospholipid bilayer, charged ions, and electrical chemical gradient
- Action potential is initiated when the depolarization reaches a threshold, leading to sodium and potassium channels opening and closing
- Myelin sheath insulates the axon, allowing for faster propagation of the action potential, while nodes of Ranvier are gaps where the action potential is regenerated
- Refractory periods, including absolute and relative refractory periods, prevent continuous firing of neurons
- Myelin sheath, made of oligodendrocytes, can degrade, leading to disorders like multiple sclerosis and decreased neural communication efficiency
- Saltatory conduction involves action potential jumping between nodes of Ranvier, speeding up the propagation of charge along the axon
- Neurons synapse onto each other, producing excitatory and inhibitory postsynaptic potentials that add together to cause an action potential
- Neural integration involves the integration of multiple inputs from presynaptic neurons, which can be both temporal and spatial
- Neurons communicate through chemical synapses, where neurotransmitters are released, bind to receptors, and are cleared from the synapse through endocytosis or transporters
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Description
Test your knowledge of neurophysiology with this quiz covering key concepts and processes. Explore topics such as action potentials, neurotransmitters, myelin sheath, refractory periods, neural integration, and more. Sharpen your understanding of how neurons communicate through electrochemical signals and the intricate mechanisms involved in neurophysiological functions.
