Radius
One of two long bones of the forearm, located on the thumb side and rotating around the ulna.
3 body parts starting with the letter R — each with origin, classification, and notes.
If you've been searching for body parts that start with R, you'll find 3 detailed body parts below. We're not interested in giving you only a list of names — every entry on this page links to a full profile with the kind of detail you'd actually want to know.
For body parts, that means body system, location, function, and scientific name.
One of two long bones of the forearm, located on the thumb side and rotating around the ulna.
The final straight section of the large intestine that stores fecal material before elimination.
Twelve pairs of curved bones that form the rib cage and protect the organs of the chest.
That's our current list of body parts starting with the letter R. We add new entries every week — if you have a favorite body part starting with R that isn't on this page, let us know and we'll write it up.
Looking for more? Try body parts that end with R, or contain R anywhere in the name.