"Several Keys on Laptop Keyboard Not Working - Keyboard Problem or Internal Problem?"

I had my laptop on my lap, and as I turned around, the laptop almost dropped to the ground, causing me to grab it by the keyboard to prevent it from falling. I thought everything was okay, until I pressed the "c" key and discovered it didn't work. I took the key off and replaced it. It started working fine.

It was then that I discovered my "a", "z", "q", "1", "`", and "tab" key did not work at all. I tried taking the key off, cleaning underneath, but nothing seems to be working. I turned my computer off overnight, hoping they would start working again, but that was not the case. Is this a problem with the keyboard or an internal problem. I ordered a replacement keyboard (Dell Part: 1M722) but I'm not sure this will help. Does any one happen to know what sort of problem this is and how I would go about fixing it?

 

since all of those keys are in the same area, I'd say to broke something while catching it. Maybe severed one of the wires that sends the data from the keys.

 

Well, I'd guess something in the keyboard was torn or damaged, and so a replacement keyboard will probably fix it.