ANATOMY & PHYSIOLOGY A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site triceps Biceps and triceps muscles. Left: biceps contracted. Right: triceps contracted Any muscle that has three points of origin. Most commonly "triceps" refers to the triceps brachii muscle – a large extensor along the back of the upper arm in humans. It originates just below the socket of the scapula (shoulder-blade) and at two distinct areas of the humerus, the bone of the upper arm. The tricpes extends downward and attaches to the upper part of the ulna, in the forearm. Related category    • ANATOMY AND PHYSIOLOGY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP