Neurons, action potentials, synapses, neurotransmitters, brain regions, sensory systems and learning and memory.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the basic structural unit of the nervous system?
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Neuron- Which part of a neuron receives signals from other neurons?
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Dendrites- What is the long projection of a neuron that conducts action potentials?
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Axon- What is the junction between two neurons called?
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Synapse- Name the small gap between the axon terminal and the receiving cell membrane.
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Synaptic cleft- Which cells support neurons and comprise about half of all brain cells?
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Glial cells (or glia)- What is the resting membrane potential of a typical neuron?
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Approximately -70 millivolts- What is the minimum stimulus intensity required to trigger an action potential?
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Threshold- Which ions rush into the neuron during the depolarization phase of an action potential?
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Sodium ions (Na+)- Which ions flow out of the neuron during repolarization?
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Potassium ions (K+)- What is the period when no new action potential can be triggered, regardless of stimulus strength?
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Absolute refractory period- What mechanism maintains the resting membrane potential by pumping out sodium and in potassium?
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Sodium-potassium pump (Na+/K+-ATPase)- What is the membrane of the receiving neuron at a synapse called?
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Postsynaptic membrane- What is the membrane on the transmitting side of a synapse called?
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Presynaptic membrane- Which type of synapse involves direct electrical coupling between neurons?
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Electrical synapse
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