Joint connecting upper arm and forearm

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ScienceOne small aha

Your new ahaElbow

The elbow connects the upper-arm humerus with the radius and ulna. Source: Elbow ↗

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37This brain region coordinates movement and balance.RECALL
Cerebellum
It fine-tunes motor control
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38These electrical messages travel through the spinal cord between the brain and the body.RECALL
Nerve signals
It links the brain and peripheral nerves
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39These protective membranes surround the brain and spinal cord.RECALL
Meninges
They form three protective layers
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