A pathologist e-mails:

A head might be brought into this country for purposes of teaching anatomy at a medical, nursing, dental or such school. Actually, I think you need ‘proper paperwork’ to move body parts from state to state as well. And many a nefarious person has been known to ‘buy’ body parts for teaching in the poorer countries. It used to be true that almost all human skeletons at anatomy schools originated from India.