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How brain works in human body?

How the human brain works.

The brain works together with our other organs so that our body can work according to its instructions. The brain and spinal cord form the central nervous system, both systems work together to coordinate all body activities.

When you think hard the cerebrum (hemisphere) functions to remember, analyze, so that creative ideas emerge (right hemisphere). For logic and speech, use the left hemisphere.

The brain stem functions for the basic needs of organs such as regulating heart rate, breathing, digestive system, blood circulation and feeling when we wake up or fall asleep.

The brain is the main controller of the human body, the brain is encased in the skull and is protected by cerebospinal fluid. This fluid serves to protect the brain from various disturbances both vibration and impact on the head.

With the brain that is given by the Almighty we can think, socialize, communicate and remember everything that you have passed.

The human brain is larger than the animal's brain, weighs about 1.4 kg and consists of 100 billion nerve cells. The brain consists of several major parts such as the cerebrum, cerebellum and brain stem. The cerebrum is the largest part of the brain. Weighing about 85% of the weight of the brain, the cerebrum is divided into two hemispheres. The brain stem connects the brain to the bone marrow.


The brain has 3 main parts: cerebrum, cerebellum and brain stem.


The cerebrum is the largest part of the brain, 85% of the total weight of the brain. The cerebrum has a wrinkled surface, namely the cerebral cortex, which consists of gray matter. Below the cerebral cortex is gray matter. The cerebrum in humans is very large and more important than other parts of the brain. Large parts of the outer brain regulate reading activity, thinking, learning, talking, emotions and planned muscle movements like walking. Cerebrum also controls vision, hearing and other senses. The cerebrum is divided into 2 parts. The left side of the cerebrum controls the right part of the body and the left part of the cerebrum controls the left side of the body. The cerebellar hemisphere is then subdivided into 4 parts:

Frontal lobe: responsible for cognitive function and decision making.

Temporal lobe: responsible for processing memory, combining it with taste, sound, vision, touch and emotional sensations.

Parietal lobe: responsible for processing information about temperature, taste, touch, movement and spatial orientation.

Occipital lobe: responsible for vision.


The second largest part of the brain is the cerebellum, which is below the back of the cerebrum. The cerebellum has an important function in motor control and is responsible for coordinating muscle movement and controlling balance The cerebellum consists of gray and white matter and transmits information to the spinal cord and other parts of the brain.

-Brain stem

The brain stem is located at the bottom of the brain, connecting the cerebrum to the spinal cord.