An extremely thin glass tube filled with a salty fluid with its tip being small enough to detect the electrical activity of a single neuron would be referred to as a(n)
A)pixel.
B)microelectrode.
C)PET scan.
D)fMRI.

Question

Quizplus · Accepted Answer

Microelectrodes are designed to measure electrical activity in biological cells and tissues, including the activity of single neurons, by being inserted directly into or near the target cells. Their small size allows for the detection of electrical signals at a very fine scale, which is not the purpose of pixels, PET scans, or fMRIs.

An Extremely Thin Glass Tube Filled with a Salty Fluid