What area of the brain stem is labelled D?

Identify the structure labeled  ” B   “

  Identify the structure labeled ” C” 

Identify the muscle at “B”. 

Identify the structure labeled ” B “

Identify the area labeled “C”

Identify the muscle at “B”.

Identify the structure labeled “A” on the wall mount above.

Identify the structure labeled ” C “

Identify the insertion of the muscle indicated by “B”.