<prompt> The fascia around the nerve bundle of brachial plexus is derived fromPreveebral fasciaDeep cervical fasciaClavipectoral fasciaPectoral fascia  <response>: The fascia around the brachial plexus is called axillary sheath and is a derivative of preveebral fascia Axillary sheath covers brachial plexus and axillary vessels Axillary sheath localises the anesthetic solution to the nerve plexus. Ref : Grays Anatomy The Anatomical Basics of Clinical Practice 41 e pg 777 