Anatom3DMedial intermuscular septum of arm
Septum intermusculare brachii mediale · Vnitřní mezisvalová přepážka paže
Fascia & connective tissue
Looks like
A sheet of fascia along the inner upper arm bone, separating the front and back muscles.
What it does
Divides the compartments; the ulnar nerve passes through it.
Keeping it well
Can compress the ulnar nerve after surgery at the elbow.