Name the structure highlighted in a pink line. (be specific)

Identify the muscle at the tip of the pointer  

Identify the structure highlighted in pink. The bone is also seen by itself in the second picture.

What is the action of the muscle at the tip of the pointer labeled “A”?  

Identify the muscle at the tip of the pointer labeled “C”.  

What is the origin of muscle at the tip of the pointer labeled “B”?  

Identify the action of the muscle at the tip of the pointer labeled “A”.     

Identify the muscle at the tip of the pointer at the tip of the pointer labeled “A”.  

Identify the muscle at the tip of the pointer labeled “B” in the image below.  

Identify the foramen labeled ” B ” and one structure that passes through it.