bioelectrical
Living current-based
Bioelectrical describes electrical phenomena in living organisms—the currents and voltages generated by cells, tissues, and organs.
The heart produces bioelectrical signals measured by an EKG; the brain produces those measured by an EEG.
Bioelectrical impedance analysis estimates body composition by measuring how electrical current passes through tissue.
Neuron's rapid electrical discharge
- depolarizationLoss of electrical gradient
- repolarizationMembrane voltage reset
- nerve impulseElectrical signal through neurons
- electrochemicalInvolving electricity and chemistry
excitability · conductivity · electrophysiology · axon · dendrite · myelin sheath · synapse · neurotransmitter
Heart's electrical activity record
- ECGCardiac electrical recording
- arrhythmiaAbnormal cardiac rhythm
- pacemakerDevice regulating heartbeat
- defibrillatorHeart-shocking medical device
tachycardia · bradycardia · atrial fibrillation · sinus rhythm · P-wave · ventricular fibrillation · heart rate variability · cardiac monitoring
Brain wave recording
- EEGNeural activity recording
- brainwavesElectrical signals from neurons
- alpha wavesBrain oscillations during relaxation
- beta wavesAlert-state neural oscillations
gamma waves · delta waves · brain-computer interface · neurofeedback · sleep study · brain stimulation · transcranial
Medical use of current
- TENSElectrical nerve therapy
- deep brain stimulationImplanted electrodes modulating neural circuits
- cochlear implantImplanted auditory nerve stimulator
- biofeedbackTraining via physiological monitoring
Voltage-producing aquatic creature
- electric rayShock-producing marine fish
- sharksLarge predatory fish
- regenerationBiological self-repair process
- wound healingRestoration after injury
action potential
Neuron's rapid electrical discharge
- depolarizationLoss of electrical gradient
- repolarizationMembrane voltage reset
- nerve impulseElectrical signal through neurons
electrochemical · excitability · conductivity · electrophysiology · axon · dendrite · myelin sheath · synapse · neurotransmitter · neural pathway
electrocardiogram
Heart's electrical activity record
- ECGCardiac electrical recording
- arrhythmiaAbnormal cardiac rhythm
- pacemakerDevice regulating heartbeat
defibrillator · tachycardia · bradycardia · atrial fibrillation · sinus rhythm · P-wave · ventricular fibrillation · heart rate variability · cardiac monitoring · palpitations
electroencephalogram
Brain wave recording
- EEGNeural activity recording
- brainwavesElectrical signals from neurons
- alpha wavesBrain oscillations during relaxation
beta waves · gamma waves · delta waves · brain-computer interface · neurofeedback · sleep study · brain stimulation · transcranial
electrotherapy
Medical use of current
- TENSElectrical nerve therapy
- deep brain stimulationImplanted electrodes modulating neural circuits
- cochlear implantImplanted auditory nerve stimulator
biofeedback · muscle stimulation · pain management · nerve regeneration
electric eel
Voltage-producing aquatic creature
- electric rayShock-producing marine fish
- sharksLarge predatory fish
- regenerationBiological self-repair process
bioelectricalmechanical
Operated by machinery
biomechanical · biochemical · chemical · thermal · hydraulic
bioelectricalsynthetic
Produced artificially, not natural
artificial · inorganic · technological · electronic · electromechanical