If you read French, I have seen several articles that list the following book
as a classic discussion of body part idioms, though I have not been able to
get hold of it to read yet:
Dhorme, Édouard, 1923. L’Emploi Métaphorique des noms des parties du corps en
hébreu et en akkadien. Paris : Paul Geuthner ; rpt. 1963.