Tenderloins are from the loin area which is on the side of the back.
yes one on each side
Typically, only two.
A cow typically has two tenderloins, one on each side of the backbone. They are a small and tender cut of meat located near the spine in the loin area of the animal.
No part. Chickens come from chickens, not cows.
Loin
The head
Angus beef does not come from any part of any cow, but comes from a BREED of cattle (or cows) called Angus.
http://ask.metafilter.com/27259/How-much-meat-is-there-on-a-cow
The part of the cow that fajita meat comes from is the plate. Traditionally, fajita meat is made from skirt steaks which is made from the plate of the cow.
The upper part of the cow.
How Long to Boil Chicken Tenderloins
They come from where you might think, the head of the cow on either side, attached to the cheekbones.