Name the numbered structures and provide their function !

A : What spinal nerve is this ( by letter and number) ? C8 spinal nerve

B : What vertebrae is this ( by letter and number) ? T2 vertebrae

C : What is the name of this spinal nerve ? Axillary nerve

D : What is this structure next to the spinal cord ? Sympathetic chain (there is one on both sides of the SC - not shown here)

A belongs to what specific plexus ? Brachial plexus

Name a muscle that C activates ? Deltoid muscle

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