What is the function of structures B & D?

Identify the bone at C.  Be specific. 

What is the origin of muscle “B”?

What is the origin of muscle “A”?

  Identify the structure labeled “C” 

Identify the bone at C.  

  Identify structure labeled “D” 

PROPERLY Identify the bone labeled “A”

  Considering the classification of bones by shape, how is this bone classified?

What is the insertion of the muscle at the pointer?