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The Brain - Coggle Diagram
The Brain
Neurons connect the brain to the rest of the body, delivering instructions to muscles and bringing back information from your senses.
They also connect the three main parts of the brain: the brain stem, cerebellum, and cerebrum.
. Each brain part controls specific body activities, and they have numerous connections so that each part can communicate with the others.
The brain stem is sometimes called the lizard brain because it does pretty much the same thing in lizards as in you: controls body processes that are essential for survival.
Day and night, your brain stem keeps your breathing, digestion, heartbeat, and other
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autonomic body processes running smoothly. The lizard brain also controls your “fight, flight, or freeze” response—your immediate reaction to difficult situations.
Cerebellum
Each time you move your body, your cerebellum is at work coordinating muscle movements.
It adds “targeting instructions” when other parts of your brain send signals using information such as your body’s current speed and position.
With the cerebellum’s guidance, you can touch your nose in one smooth motion.
Without it, the movement would be jerky, or you might even miss your nose completely!
The cerebellum also regulates balance and (6)motor control as well as storing memories of muscle movement—called procedural memory, or the unconscious
memory of how to do something. Muscle memories become stronger with repetition, which is why practice helps some movements—like playing guitar or skateboarding—
become automatic. Some experts believe those muscle memories also reinforce pathways in the brain and make the
onset of diseases such as Alzheimer’s and other forms of dementia slower or less intrusive in daily life.
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The cerebrum is the largest part of the brain; it is almost 75 percent of the brain’s volume and almost 85 percent of its weight.
This is where most high-level brain activity takes place, including thought, speech, learning, and emotions.
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Sensory information reaches the brain as electrical signals, which the cerebrum interprets as sounds, images, and other sensations.
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By screening out some things, the cerebrum helps you focus on what remains—like an adjustable filter .
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