THE BRAIN

Our body consist of various organs, each organ is part of the body that has one or more special functions to do. Take the heart for example whose special job is pumping blood and loaded it with oxygen throughout the body; likewise the brain’s main job is to control our movement and thinking, while the lungs inhale oxygen from the surrounding and burns it off as carbon dioxide as we breathe.

Our body has lots of organs and inorder to live a healthy life, we need to understand what goes on inside us and how these organs works and what are the best way to keep them running, these organs are special to us therefore below are a list of the most important ones, listing down where they are and where they are located and the special jobs they perform to keep us healthy and alive.

Our brain is located in the head close to the primary sensory apparatus and the mouth. While all vertebrates have a brain, invertebrates have either a centralized brain or collections of individual ganglia. Brains can be extremely complex. For example, the human brain contains more than 100 billion neurons, each linked to as many as 10,000 others.

History

Early views on the function of the brain regarded it to be a form of “cranial stuffing” of sorts. In Egypt, from the late Middle Kingdom onwards, in preparation for mummification, the brain was regularly removed, for it was the heart that was assumed to be the seat of intelligence. According to Herodotus, during the first step of mummification: ‘The most perfect practice is to extract as much of the brain as possible with an iron hook, and what the hook cannot reach is mixed with drugs.’ Over the next five-thousand years, this view came to be reversed; the brain is now known to be the seat of intelligence, although colloquial variations of the former remain as in “memorizing something by heart”.

The Brain Main Parts

Our human brain consist of mass nerve tissue within the skull, it controls all of our thinking and activities, protected by the skull, it is one of the most important organs in our body. It is composed of four main parts:

brain organ cerebrum cerebellum pons medulla

1. The cerebrum controls all mental processes and movement, it is the largest part of the brain. Without the cerebrum, thinking and controling any part of our body is impossible.
2. The cerebellum is located right below the cerebrum at the back of the
head. The cerebellum is the second largest part of the brain and it controls our sense of balance and our muscle reflexes, such as those that make us automatically take our hand away when we touch a hot stove by accident.
3. The pons, which is at the base of the skull beneath the cerebellum, receives and sends out impulses or signals from the cerebrum.
4. The medulla, below the pons, extends down into the spinal cord. It sends on signals received from all the other parts of the brain.

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