Name the numbered structures and provide their function !

A : What spinal nerve is this ( by letter and number) ?

B : What vertebrae is this ( by letter and number) ?

C : What is the name of this spinal nerve ?

D : What is this structure next to the spinal cord ?

A belongs to what specific plexus ?

Name a muscle that C activates ?

The arrows that point at D start from "swelllings". What do we call these swellings ?

Click here for answers