| − | The pineal gland is a central gland that rests squarely above the [[superior colliculous]]. It was believed by [[Descartess]] that the soul communicated with the body by pumping [[cerebrospinal fluid]] through the body. | + | The pineal gland is a central gland that rests squarely above the [[superior colliculous]]. It was believed by [[Descartes]] that the soul communicated with the body by pumping [[cerebrospinal fluid]] through the body. |