"Even the joints in our vocal chords can become arthritic, contributing to problems."

Factual Questions
1

I think you can imagine where I am going with this. Does the voice box have a hinge? Are there regions in the skeleton wholly unknown to me? What are they talking about? This is from an article at http://bodyodd.nbcnews.com/_news/2013/01/25/16684174-the-wavery-shaky-old-persons-voice-explained?lite

2

This sounds more like age related tremor rather than arthritis.

3

Well, there is the cricoarytenoid joint that can be affected by rheumatoid arthritis. This joint connects two different cartilages as opposed to bones.

4

Well, I learned some things. I didn’t know about that joint in particular, and I didn’t know that joining cartilages constitutes a “joint” as the term is used in medicine (noting that “joint” means all sorts of things in English).

Thanks!!