Ever wonder what makes your biceps tick? From flexing elbows to rotating forearms, learn about this vital muscle with #SciePro. #MuscleAnatomy #FitnessFacts

A video posted by @SciePro on X (formerly Twitter) (May 12, 2024 ・ その他 ・ 0:12 ・ #SciePro #MuscleAnatomy #FitnessFacts). Watch and download it on XCLYP.