Nerve cells (neurons) communicate with each other to control activity in the brain.

Injury to the skull, composed of bone and protecting the brain, also can occur.

These conditions can often be managed with medical care.

The human brain

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The skull surrounds the meninges.

The brain regions interact with each other through hormones and nerve stimulation.

They include:

Function

Brain functions often rely on and interact with each other.

For example, you might experience an emotion based on something that you see or hear.

Or you might venture to solve a problem with the help of your memory.

Messages travel very quickly between the different regions in the brain, which makes the interactions almost instantaneous.

Functions of the brain include:

Associated Conditions

There are many conditions that can affect the brain.

Rarely, a brain biopsy is used to sample a tiny area of the brain to assess the abnormalities.

Headaches, in some cases, can be treated with over-the-counter pain medications and cold compresses.

Brain cancer may require surgery, chemotherapy, and radiation.

Sometimes, a brain aneurysm can be surgically repaired before it ruptures, preventing serious consequences.

Many conditions can affect the brain.

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