What makes a dog bite?

[king2005]

From what I've been taught, brain damage doesn't necessarily show up on blood work, but signs of neurological damage would be present.... But I'm not sure.

Hmmm... if the dog was dropped on its head & suffered brain damage I have no idea if that would show up in blood work.. but I always thought Cancer & Tumors changed something in the blood so it would alert to an issue of some sort.
Can you even check for neurological issues with dogs? I don't know how its done with people, so I'm totally clueless :P