Of course the life sciences go beyond Anatomy/Physiology/Medicine.

At a higher level of complexity you have cognitive science (including neuroscience), a major field in itself.

And next level up, on a really large scale, life sciences get into the theory of evolution, ecology and even the earth- or geo-sciences.

Really, the definition of 'life' itself is quite debatable. Personally, I take a very general, open-ended definition, and I think that it's any complex system where energy is flowing through it and the system is maintaining a homeostatic state.

So this would include even things such as a weather system, or even tectonic plate movements. You just can't separate life from the wider ecological and geological environment - for instance a 'thunder-storm' could be considered 'alive' by my definition (the 'gaia' hypothesis).