Relating to the Bones of the Body, __ System
Puzzle 11 of Fandom Easy Pack
Question is: Relating to the Bones of the Body, __ System
and the answer is: SKELETAL
Word Meaning:
SKELETAL — (paleontology, informal) Shorthand for skeletal diagram (a black-and-white drawing of a [usually extinct] animal’s skeleton to be used as a reference for paleoart)
Definitions from Wiktionary.