Then his men were upon me and I went down from a blow on the head.

A man my size, would certainly have passed out from the blow.

The victim died from a single blow to the head.

He had to stand still for a second to recover from the blow.

His own face was covered with blood from a blow on the nose.

He'd brought the child here, unconscious from a light blow to the head.

A good note; that keeps you from the blow of the law.

Blood loss can cause bruises, which usually result from a blow or a fall.

He was clearly dazed from the blow to the head.

I've never had this before from a blow on the head.