Hovedindhold

Advanced nervous system physiology

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Introduction to neural cell typesAnatomy of a neuronOverview of neuron structureOverview of neuron functionSodium-potassium pumpCorrection to sodium-potassium pump videoElectrotonic and action potentialsSaltatorisk ledning i neuronerSynapse structureNeuronal synapses (chemical)Types of neurotransmittersTypes of neurotransmitter receptorsStructure of the nervous systemFunctions of the nervous systemMotor unitPeripheral somatosensationMuscle stretch reflexAutonomic nervous systemUpper motor neuronsSomatosensory tractsCerebral cortex
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Neurotransmitter releaseNeurotransmitter removalNeuroplasticityAstrocytterMikrogliaEpendymal cellsOligodendrocytesSchwann cells
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Neuron resting potential descriptionNeuron resting potential mechanismNeuron graded potential descriptionNeuron graded potential mechanismNeuron action potential descriptionNeuron action potential mechanismEffects of axon diameter and myelinationAction potential patterns
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Visual cuesSensory adaptationWeber's law and thresholdsSomatosensationSignal detection theory - part 1Signal detection theory - part 2Bottom-up vs. top-down processingGestalt principles
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Øjets strukturenVisuel sensorisk informationThe phototransduction cascadePhotoreceptors (rods vs cones)Photoreceptor distribution in the foveaVisual field processingFeature detection and parallel processing
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Auditory structure - part 1Auditory structure - part 2Auditory processingCochlear implants
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SomatosensationSensory adaptation and amplificationSomatosensory homunculusProprioception and kinesthesiaSmerte og temperatur
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Olfaction - structure and functionPheromonesGustation - structure and function

Om dette emne

There are about 85 billion neurons in your brain, and they’re sending electrical signals in your body right now! They tell your eyes to move across this page, interpret the words that you read, maintain your posture...all in a fraction of a second. In this section we’ll explore this vast, complex system from the cellular to the sensory level.