Short Quiz 2

A type of electrode used to determine the oxygen and CO2 content of the blood.

• chemical

• floating

• disposable

• metallic disc

The metal plate electrode uses which metal as a contact?

• gold

• silver

• copper

• aluminum

Which electrode is used to pick up EEG signals from the scalp?

• metal plate

• metal disc

• metal suction

• disposable

Nonmetallic electrode used to measure the potential within a single cell

This electrode is used to study the electrical activity of neuron of superficial layers of brain

Which is not one of the principal ions involved in the formation of cell potential?

• sodium

• potassium

• chloride

• calcium

What is the typical value of the internal resting potential within a cell?

• 90 mV

• -90 mV

• 20 mV

• -20 mV

In the ___________ process, the cell goes back to its normal state in which the inside of the cell membrane is more positive than the outer surface.

The voltage produced as a result of muscle contraction

Which type of electrode is used in electromyography?

• surface

• needle

• contact

• scalp