Current
Current
Current (pronunciation: /ˈkʌrənt/) is a term used in various fields of medicine. It is derived from the Latin word 'currere', which means 'to run'.
Definition
In the medical field, current refers to the flow of electrical charge. It is a crucial concept in many medical devices and procedures, such as electrocardiograms (ECGs), electroencephalograms (EEGs), and electroconvulsive therapy (ECT).
Usage in Medicine
In electrocardiography, current is the electrical activity that is recorded by the ECG machine. This activity is generated by the heart as it contracts and relaxes.
In electroencephalography, current refers to the electrical activity in the brain. This activity is recorded by the EEG machine and is used to diagnose various neurological conditions.
In electroconvulsive therapy, a controlled current is passed through the brain to treat certain mental disorders. This current induces a brief seizure that can help to alleviate symptoms of these disorders.
Related Terms
- Voltage: The force that pushes the current through circuits.
- Resistance: The opposition to the flow of current in a circuit.
- Impedance: The total opposition to the flow of current in an AC circuit.
- Conductance: The measure of a material's ability to conduct electric current.
External links
- Medical encyclopedia article on Current
- Wikipedia's article - Current
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