The rib bone's connected to...

the backbone, etc.

When filleting fish we often run into a set of bones that run perpendicular to the backbone above the (pleural) ribs that are found around the stomach cavity.
I finally found out from
ingentaconnect An Osteological Study of the Sciaenid Genus, <i>Sciaenops</i> Gil...
these bones my dad used to call "Widow-makers" are actually named epipleural ribs.
Attachment 1343

Just thought that was a trivial 'fun-fact' ;-) lol

You always amaze and enlighten! I'm always thankful to learn something new !

I'm glad you wrote that instead of spoke it---I'd have thought you sneezed.
Thanks.

Yeah when I was a kid we always had slices of white bread on the table in case one of those little widow makers got hung in your throat.