The brain is an organ contained in the skull that coordinates sensation, intellectual activity, and nervous activity. It is made up of several parts including the cerebrum, brain stem, corpus callosum, and cerebellum. The cerebrum controls thought and movement and takes up most of the skull. The brain stem regulates vital functions unconsciously. The corpus callosum allows the two sides of the brain to work together, and the cerebellum controls physical movement and balance. The document also provides several facts about the brain's composition and functions.

2. What is the brain ?
The brain is an organ of soft nervous tissue contained in the skull
of vertebrates, functioning as the coordinating center of sensation
and intellectual and nervous activity.

3. What are the parts of the brain?
∞ Cerebrum
∞ Brain stem
∞ Corpus callosum
∞ Cerebellum

4. The functions of the cerebrum
∞ It is the largest part of the human brain
∞ Associated with functions such as thought and action such as : remembering,
problem solving, thinking, feeling and controlling movement.
∞ The cerebrum fills up most of your skull.
∞ The cerebral cortex is divided into four sections, called "lobes”.

5. The brain stem and it’s functions
∞ Also known as the medulla.
∞ It never stops working.
∞ It is located underneath the limbic system beneath the cerebrum and in
front of the cerebellum.
∞ It connects with the spinal cord.
∞ It is responsible for basic vital life functions such as breathing, heartbeat,
and blood pressure along with other involuntary functions such as
digestion and growth.

6. The Corpus callosum and it’s functions
∞ It is located very close to the center of the human brain.
∞ It is critical to any body function that involves the two sides of the brain
working together, such as coordinated eye movements, and maintaining the
balance between arousal and attention .
∞ The corpus callosum is important as it can sense, without one looking,
exactly where on the body a stimulus such as cold, pressure or touch is
applied.

7. The cerebellum and it’s functions
∞ It is located below the cerebellum and above the medulla.
∞ It controls all physical movements such as running, jumping,
talking etc.
∞ Along with that it is responsible for controlling one’s balance.
∞ Neurological disorders sometimes arise from damage to the
cerebellum.

8. Fun facts about the brain
1 . Weight. The weight of the human brain is about 3 lbs.
2 . Cerebrum. The cerebrum is the largest part of the brain and
makes up 85% of the brain’s weight.
3 . Skin. Your skin weighs twice as much as your brain.
4. Gray and white. Your brain is 60% white matter and 40% gray
matter.
5 . Water. 75% 0f the brain is made up of water .

9. 6 . Neurons. Your brain consists of about 100 billion neurons.
7.Albert Einstein. Einstein’s brain was similar in size to other humans except in the
region that is responsible for math and spatial perception. In that region, his brain
was 35% wider than average.
8 . No pain. There are no pain receptors in the brain, so the brain can feel no pain.
9 . Blood vessels. There are 100,000 miles of blood vessels in the brain.
10. Fat. The human brain is the fattest organ in the body and may consists of at least
60% fat.

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