Just out of curiosity....How many of you would donate your body? I knew a gentleman that was a professor at UT, and he donated his body. At the time, I was much younger and thought that was strange, but now, I know it's just our earthly body, and it would be cheaper than a funeral. Like I would care at that point! LOL
Every state is different and you need to see how your state operates. I don't know if it matters where the death event occurs (in the home or hospital).
Places you can start with are:
1) contact any medical school in your area and ask if they have a donation program (most do)
2) contact your local Medical Examiner's office and ask them
3) contact your local hospice chapter and ask them.
What you do need to do is make your intentions very clear with your remaining family members and get it documented in your paperwork
EXACTLY what you want done. If you are in the hospital, you make this part of your chart when you get admitted. I'm glad you are thinking of this now.
The other thing is to consider being an organ donor now. My state has this indicated on my driver's license and you can "opt out" at any time if you change your mind. So if you get in that serious accident or head trauma event - you can still help others. But be sure to convey your intentions with your family! Don't share your intentions with just one or two people. This is a situation where the more who know, the merrier. It saves alot of hurt feelings and confusion among family members later.
And finally, if you chose cremation those ashes can still give valuable service. Many teams with cadaver dogs use them to train their dogs. So if that is something anyone is considering, contact the local teams in your area and set this up with them. The same thing is true with placentas, dental extractions, surgeries that remove things such as amputations or hysterectomies. Some require a little planning and prior approvals but it's amazing what people can get back when they say "It's for personal (or religious) reasons" and your local SAR or HRD team will bless you for years to come.