The signal transduction pathway is the mechanism by which the energy of a photon signals a mechanism in the cell that leads to its electrical polarization. 1  This polarization ultimately leads to either the transmittance or inhibition of a neural signal that will be fed to the brain via the optic nerve.
The Inland Empire (I.E.) is a metropolitan area and region of Southern California. It is situated directly east of the Los Angeles metropolitan area.
Discover the Inland Empire. With its inviting destinations and uncrowded wilderness, this region feels like an insiderâs secret amid the bustling excitement of Southern California. Mount San Gorgonioânicknamed âOld Graybackââis the tallest peak in Southern California, at 11,502 feet/3,506 meters.