Serpent god of the spinal column and the central nervous system. Apep is the towrope of the sunboat, and the training for self-control and self-discipline was imaged as control of the serpent Apep. Failure to control Apep leads to depression and anxiety, which were problems as real then to civilized people they are as now.

The giant serpent of chaos, enemy of Ra.

A large serpent residing in the celestial waters that attempted to thwart the sun Ra on his nightly passage through the underworld.