The flexor and extensor group of the forearm attach on the medial and lateral condyle of the ulna respectively. What is the evolutionary explanation for that? Selected for to favour internal and external rotation of radius over ulna, akin to how forewheels of a car can rotate sideways while the back-wheels just "kick forward"?


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.