I teach Audio Engineering, so kidneys, hearts and eyes are definitely not part of my props. But I have found that a combination of auditory, visual and kinesthetic works best with my students. Where I teach, the students get to practice on the equipment in the lab. This helps to correlate the lecture with what they will be doing in the real world.
It sounds like you are certainly touching all the bases, Cheryl! One of our A&P instructors brings in kidneys, hearts, eyes etc. from cows, pigs and sheep - of course you'd need to have a friendly relationship with a butcher... Do you have anatomical models in your classrooms?
Here's a link to a list of pretty useful A&P websites: http://www.uwlax.edu/faculty/hoar/links.htm
I have also used the kinestheitc approach in addition to other modalities to enhance the learning process. One aspect of teaching anatomy and physiology is learning origins and insertions of muscles. We use massage therapy handouts on palpating muscles and get into groups to palpate the muscles of the upper back and shoulder. I also use slides, pictures, videos and anything else I can find.
I am also one who prefers to "feel" rather than just "see". One of our instructors actually brings in cow organs such as kidneys and eyes so that students can get a "hands on" feel - with latex gloves of course!
