How many muscles are in the brain?

Expert Answers

An illustration of the letter 'A' in a speech bubbles

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...

Unlock
This Answer Now

Start your 48-hour free trial to unlock this answer and thousands more. Enjoy eNotes ad-free and cancel anytime.

Start your 48-Hour Free Trial

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.

Approved by eNotes Editorial Team
An illustration of the letter 'A' in a speech bubbles

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. 

Approved by eNotes Editorial Team
An illustration of the letter 'A' in a speech bubbles

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.

Approved by eNotes Editorial Team