EDAPT Electrical Properties
A defibrillator generates a voltage of about 500 V. If the resistance of the skin is about 1 million ohms, how much current does the defibrillator generate in the body?
0.0005 A
If the current in the bloodstream is 0.0001 amps and the heart creates about 0.06 V of voltage, then how much resistance does the bloodstream cause to the flow of electricity?
600 ohms
What effect does electrical current cause on muscles?
Contract
What is the primary function of a defibrillator?
Correct an arrhythmia
What is the primary function of a defibrillator?
Creates a high voltage across the heart
What are the substances that carry charge in the fluid throughout the body?
Electrolytes
What chemicals regulate the flow of electricity in the human body?
Electrolytes
Which is not an application of electricity in healthcare?
Healing impaired skin
How does the electric current change when flowing through a substance with the same voltage but lower resistance?
Increases
What is the property of a substance which is opposite to the movement of electrical flow?
Resistance
Which are most common electrolytes in the body?
Sodium, calcium, potassium, magnesium
What is an important electrical property of the human skin?
The skin is resistant to current
What does an electroencephalogram (EEG) measure?
The voltage across the brain
What is the driving force that moves electrical charges through resistance?
Voltage
What pushes an electron charge through an electrical circuit?
Voltage
How does electrical current occur in the body?
When the flow of charges is transported across the cell membrane