A blow to the head could cause such a palsy.

For instance, a sharp blow to the head may cause a seizure.

In consequence, a blow on the eye causes you to see flashes of light.

A direct blow with the knife edge of your hand can cause death.

A blow on the head caused me to fall.

If the blow had caused swelling inside the boy's skull, increased circulation to the area could do little else but good.

The blows had hurt terribly, but caused no lasting damage.

He estimated that the blow would have caused severe injury in a human.

The blow to the head has caused a great deal of trauma to the brain.

She said the blow caused "severe pain to neck and head."