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Brain

That part of the central nervous system inside our heads that controls all our perceptions, thoughts, feelings and voluntary movements.

Contributors in Brain

Brain

cerebrospinal fluid (CSF)

Anatomy; Brain

A clear, watery liquid that surrounds and protects the brain and spinal cord, and is also found throughout the ventricle (brain cavities and tunnels). CSF cushions the brain and spinal cord from ...

brainstem or brain stem

Anatomy; Brain

The base of the brain. This part of the brain connects the brain's cerebrum to the spinal cord. The brain stem controls many automatic and motor functions. The brain stem is composed of the medulla ...

spinal cord

Anatomy; Brain

Nerve fibers that carry instructions to the rest of your body. These nerve fibers connect all the parts of your body to your brain, telling your body what to do. The spinal cord is your body's ...

axons

Anatomy; Brain

These are the long fibers extending from the brain cells (neurons) that carry the output (an electrical nerve impulse) to other neurons. They can be up to a meter long. There is just one axon per ...

arachnoid

Anatomy; Brain

One of the three membranes that protects the brain and spinal cord. The space between the arachnoid and the pia (another membrane) is filled with cerebrospinal fluid, protecting the brain from ...

brain

Anatomy; Brain

The organ of your body located inside your skull. Your brain is responsible for everything you think, feel, see, hear, do, and remember. How your brain works determines a lot of things about your ...

nucleus

Anatomy; Brain

A term used two ways in brain studies: 1) as the central part of a neuron or other types of cells where genetic information is stored and put into action; 2) a cluster of neurons within a discrete ...

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