Ah I see, sorry.
What's the difference between regular physio and this physio course though? Since physiology is the foundation of modern medicine, I find it hard to imagine a physio class that is not applicable to medicine - the basis of my comment above.
If there is little difference in the material and you are already taking biochem, it may behoove you to put off phsyiology for now assuming you are not a senior and the physio course is offered later.
But as I said, I found it helpful to have physio when prepping for the MCAT. You did not indicate when you plan on sitting for the MCAT so my above suggestion my be null if you cannot take a physio course between now and then, but if you think you could get to know the prof and get a good LOR, then go for it.