What Human Body Parts Start With the Letter "R"?


Radius, rectum, retina, ribs, red blood cells, rotator cuff, ribcage, rectus abdominis, rhomboids, and rectus femoris are all body parts that start with the letter "R." Two major body systems, reproductive and respiratory systems, also start with the letter R. Some body parts have informal names or nicknames that start with the letter, such as rump, roof of the mouth, or ring finger. Finally, when there are two of a body part, a person may use terms like right leg, right arm, right eye, right elbow, right ear, right ovary, right foot, right hand, or right kidney to describe them.