Monitoring and controlling all other functions of the body, the brain is one of the most important organs of the body, states About.com. It is comprised of three main parts: the forebrain, the brainstem and the hindbrain.
The forebrain is the most complex center of the brain and allows humans to feel emotions, learn and remember. In it lies the cerebral cortex, which processes the flood of information gathered from surroundings. The hindbrain controls involuntary systems, such as digestion and breathing. It also governs movement and coordination. The brainstem sends and receives commands and information to and from the rest of the body. Data from senses is sent through the brainstem to the forebrain, where it is interpreted by the cerebral cortex.