I visited a couple of programs at the end of my first year, and I wasn't really asked any questions. Really the purpose of your visit at this point is to figure out what the program is about in a nutshell and what are its strengths and weaknesses. What kinds of cases are they bringing in? Are the attendings interested being good teachers or do they just want to stroke their egos? What kinds of responsibilities do the residents have in their first, second, and third years? Most importantly, does the program look radically different in reality than it does on its caspr-crip listing?
You might get asked a question about anatomy ("Name the 3 heads of the triceps surae?") but your average attending is so far removed from the basic sciences that they don't have all that much material to go on. So don't worry if you forgot the Krebs cycle or the spino-thalamic tract--so have most doctors. Actually, the attendings will probably not notice you, the 2nd/3rd year residents will want the 1st years to babysit you, and the 1st years will pawn you off on the externs. The externs might pimp you but who gives a darn if you look stupid in front of an extern, and I say that speaking as an extern myself.
What you need to keep in mind is that the 2nd and 3rd years might all be gone by the time you rotate there, unless they become attendings, and even so they probably won't remember you unless you are either brilliant beyond your years or if you have a tonic-clonic seizure in the middle of a procedure.
So enjoy yourself, they're expecting nothing a from first year student, and no one will object if you meet their expectations!
