Such a unit is an additional gearbox that separates the vehicle's drive shaft into two parts: 1  The gearbox-facing shaft which will transmit the power of the engine to the split shaft PTO; 2  The axle-facing shaft which transmit the propelling power to the axle.
For the journal of the same name, see Hippocampus (journal). The hippocampus is a part of the forebrain, located in the medial temporal lobe. It belongs to the limbic system and plays major roles in long term memory and spatial navigation. Humans and other mammals have two hippocampi, one in each side of the brain. In rodents, where it has been studied most extensively, the hippocampus is shaped something like a banana.
The reason is that long-term memory is not located in just one specific area of the brain. The hippocampus is the catalyst for long-term memory, but the actual memory traces are encoded at various places in the cortex. The destruction of both hippocampi (as the result of a stroke, for example) has disastrous effects on long-term memory, preventing the individual from learning anything new whatsoever. The most important evidence of the role of the hippocampus in transferring long-term memories has been provided by subjects who had sustained damage to both hippocampi and could not keep things in their memories for more than a few moments.