Hi Alison,
for anatomy I still like the Netter book, however the I-pad app is even better than the hard copy book.
For MSK you still can’t go past the Martinoli and Bianchi MSK book,
For obstetrics I like Callen,
and for general purpose I like Rumack,
these books are always at my fingertips,
for other niche areas i use on line searches and my collection of journal articles,
cheers
Steve