カイ・グリーンさんのインスタグラム写真 - (カイ・グリーンInstagram)「💪🏾LOOKING TO GET WIDER?! The tricep is a large muscle group located on the back of the upper arm. The triceps brachii, Latin for “three-headed muscle of the arm,” is composed of three separate muscles. These muscles are known as the long head, the lateral head, and the medial head. 📲Download & Save Off My Training Plans Directly To Your Phone -> Trainwithkai.com」10月11日 13時53分