Who Makes Receptor Potential?

A receptor potential, also known as a generator potential, a type of graded potential, is the transmembrane potential

difference produced by activation of a sensory receptor. A receptor potential is often produced by sensory transduction. It is generally a depolarizing event resulting from inward current flow.

How is receptor potential formed?

The initial changes are called receptor potentials, and they are produced by the movement of positively charged ions (e.g., sodium ions) into the cell through openings in the cell membrane called ion channels.

Where do receptor potentials originate?

For example, receptor potentials occur in the rods and cones of the eye, but the first spikes in the visual system occur in the ganglion cells. Figure 4-3 shows how a receptor can conceptually be divided into a receptor region, a spike-generating region and a conducting region.