Once activated by the capsaicinoids, these receptors send a message to the brain that the person has consumed something hot.

During the day, receptors in a neck artery sense the low blood oxygen and send signals to the brain stem, telling the person to breathe.

When a hormone fits into a receptor, the receptor sends a signal to another part of the cell.

Red-green receptors cannot send messages about both colors at the same time.

These receptors send a signal to the brain that tells the body to dilate the blood vessels, including capillaries.

And will you please have both sets of receptors, the two sets that are misbehaving, sent to Freehold at once?

This occurs because the fatigued receptors send a weaker signal to the brain.

Sensory receptors inside the nose send impulses to the brain, triggering the sneeze reflex.

Smelling When scent molecules move past smell receptors in the nose, those receptors send a signal to the brain.

After binding the odorant, the receptor is activated and will send a signal to the glomeruli.