Identify the layer indicated by arrow B

Identify the structure labeled ” E “

Name the fluid found within the structure at Arrow C.

Name the cranial nerve that supplies the muscle labeled “A”…

Identify the bone seen in this image.  

What is the function of the structures indicated by arrows A…

Name a cranial nerve that innervates this organ

What is the function of the structure labelled B?

Identify the structure labeled ”  A “

Identify the action of the muscle indicated by “A”.