Cerebrum – The cerebrum stores and processes much of the information that a person retains during their day to day life. It accepts visual, olfactory, taste, sound, and touch data from the areas of the body that send each type of information. In other words, all of the input received from your eyes, nose, tongue, ears, and hands is received, processed, and stored by the cerebrum. The cerebrum can be broken down further to show the individual sections that receive each type of information, but only some type of brain genius would need to know all of that.

Cerebellum – The cerebellum is the smaller section of brain matter that is connected to the bottom of the cerebrum. The cerebellum is known to regulate instinctual actions such as the heartbeat, breathing, movement, and many other processes. The cerebellum also serves as a “helper brain” to the cerebrum, because it often processes information that the cerebrum sends. In animals more primitive than human beings, the cerebellum is the more dominant type of brain. The cerebellum serves many purposes other than those mentioned here, and there is still much debate on the extent of its use in humans.

Brain Stem – The brain stem is the main pathway by which the brain transmits and receives information to and from the body. The brain can signal that it wants the body to lift its right leg by sending a signal down the brain stem, through the spinal cord, and into the right leg, which causes the leg’s muscles to move. In this diagram of a labelled brain, the brain stem tapers off, but in the body the brain stem continues on as the spinal cord. Visually the brain stem and the spinal cord are one continuous bundle of nerves.

More info: How to Make a Diagram of a Labelled Brain

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