To be directly involved in patient care, you've listed a good chunk. There is also Speech Therapy, Master Social Workers, Master Pyschologists (the Master between the degree required), Pharmacists, Pharmacy Techs. Of all the above, RN's are the highest paid and most in demand, however. The RN is sort of like the glue that holds all of these together. While the RN will do a little of the other professions job some of the time, it will many times be the RN (who is with the patient 12 hours per work day) who will recommend consults to the MD. The RN is trained to recognize when the other medical professions are required and then make the recommendations to the doctor for consults. But as such, RN's are also much more...accountable, per say...for the care of the patient. Much more involved, much more accountable. While the respiratory therapists know all things respiratory about X number of patients, you are expected to know nearly everything (including be able to know and understand) what RT/ST/OT/PT/MSW is saying about your patients. The ancillary professions see parts of patient care, it's the job of the RN to see the whole and to be the patient advocate.
But there are also tons of jobs in health care that are outside of direct patient care, but still an integral part of the system. Coding, Billing, PR, Janitors, Cafeteria workers, Medicare/Medicaid specialists, Pharmacists, Pharmacy Tech's, Human Resources. As the above poster said, there are thousands of jobs that you could have and still say you work in "health care."