Have I got moos for yous!
If you want to know about bovine musculature, I'm your gal.
Bovine Myology and Muscle Profiling includes videos on how to fabricate just about any cut you can think of.
Now, this is not your common grocery stuff.
This is primal. (Pardon the pun.)
Unless you're a meat geek, this might be watching paint dry.
(Actually, it's very graphic. And, not for the feint at heart.)
I think this is a WONDERFUL source for info - including skeletal info and pictures showing both cross-sections and lateral views of each area.