Star Trek 's Captain Picard essentially beamed up Bones (5)
I believe the answer is:
ulnae
'bones' is the definition.
(ulna is a kind of bone)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for ulnae that I've seen before include "Army parts" , "Thin bones in upper arms" , "parts of limb" .)