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cerebellum

The part of the brain at the back, under the cerebrum, that coordinates movement, balance and posture.

ser-uh-BEL-um noun

What it means

The "little brain" sits behind the brainstem. It does not start movements but makes them smooth and accurate, keeps balance and helps learn motor skills. Damage from stroke, injury, tumors or alcohol causes an unsteady, wide-based walk (ataxia), clumsy movements, tremor when reaching and slurred speech.

For the nurse

Test coordination with finger-to-nose and heel-to-shin tests, and watch the client's walk. Protect clients with poor balance from falls.

Remember it

Cerebellum keeps balance; cerebrum does the thinking.

At a glance

Spanishcerebelo
Also writtencerebellar

Easy to confuse with

cerebrum

The largest part of the brain, made of two halves, that handles thinking, memory, language, sensation and voluntary movement.

Related terms

central nervous system

The brain and the spinal cord together.

cerebral cortex

The thin, folded outer layer of the cerebrum, where thinking, language, memory, voluntary movement and sensation are handled.

cerebrum

The largest part of the brain, made of two halves, that handles thinking, memory, language, sensation and voluntary movement.

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