How many muscles are in the brain?

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besure77's profile pic

besure77 | Middle School Teacher | (Level 1) Senior Educator

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The brain actually does not have muscles but it controls muscles. The cerebrum is the largest part of the brain and it controls all voluntary muscles. Voluntary muscles are the muscles that we control by wanting them to. An example would be throwing a baseball or dancing.

The cerebellum is in charge of how all our muscles work together. This would be coordination, balance, etc.

The brain stem is the part of the brain that controls involuntary muscles. Involuntary muscles are those muscles that work without us having to make it happen. These muscles include those that aide in digestion and the heart beating.

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ako6777 | Middle School Teacher | (Level 1) Associate Educator

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There are no muscles in the brain. The brain is composed of grey matter and white matter.  White matter is composed of mylineated shethes of nerves fibers.  The mylin is composed of fat.  Grey matter is composed of nerve cell bodies. Many people think of the brain as a muscle because it can grow and shrink in relation to use.  The brain can actually reorganize itself in relation to our experiences and thinking.  The brain develops nerve pathways because of our experiences and thinking. This development and ability to change is called plasticity. 

pohnpei397's profile pic

pohnpei397 | College Teacher | (Level 3) Distinguished Educator

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There are no muscles in the brain.  The brain is not an organ that moves anything by using its own power.  Instead, the brain is simply an organ that does the thinking and the ordering in the body.

If you want your fingers to move to type, for example, it is your brain that is telling which finger where to move for each letter.  However, there are no actual movements going on in your brain.  Instead, there are electrical impulses that are moving around through your nerve from your brain.  They are what make your body move.

krishna-agrawala's profile pic

krishna-agrawala | College Teacher | (Level 3) Valedictorian

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Human brain consists of billions of nerve cells an nerve fires located at the upper end of spinal cord and covered by the bones of the head, which performs function such as learning, thinking, remembering, and controlling body functions. Though brain performs very useful work requiring about 20 percent of the total blood supply of the body, it does not have any muscles. The brain performs its work by flow and processing of information between and within the brain cells, rather than by any physical movement of any body parts requiring muscle action. Thus there are no muscles in the brain.

Some people do talk of brain muscle in a figurative way because the capabilities of the brains can be developed by exercising the brain, just as strength of muscles can be increased by physical exercise.

atyourservice's profile pic

atyourservice | Student, Grade 11 | (Level 3) Valedictorian

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The brain has no muscles, it uses electrical signals to communicate with other body systems and move muscles but other than that, the brain is just a stationary organ.

parama9000's profile pic

parama9000 | Student, Grade 11 | (Level 1) Valedictorian

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The brain uses electrical impulses to communicate with other parts of the body and has no muscle of its own.

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