The brain is a part of the body that allows us to make sense of the world around us and
to change our behavior to respond to it. Our brain is the control center of the whole body. It receives messages from all parts of our body and sends out necessary commands to control the body's actions. The brain is made up of a special type of cells. They are connected with each other and with the nerves in our body. The delicate brain is protected on the outside by strong skull bones. The brain is made of three main parts: the forebrain, midbrain, and hindbrain. The forebrain consists of the cerebrum, thalamus, and hypothalamus (part of the limbic system). The midbrain consists of the tectum and tegmentum. The hindbrain is made of the cerebellum, pons and medulla. Often the midbrain, pons, and medulla are referred to together as the brainstem.
                         Brain uses approximately 20% of the total oxygen pumping around the body…and about
750ml of blood pumps through the brain every minute. Information travels at different speeds within different types of neurons. Transmission can be as slow as 0.5 meters/sec or as fast as 120 meters/sec. 80% of the brain is water. Living brain tissue is a squishy, pink and jellylike organ.

The Human Brain


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