Labels:text OCR: SCAPULA This bone is more commonly known as the shoulder blade. LEFT SHOULDER JOINT The arm was pulled back by the scapulo-deltoideus muscle UPPER ARM BONE which was attached to the lower The humerus ( upper arm end of the shoulder blade. bone) was connected to the shoulder blade by the scapulo-humeralis muscle. WRIST JOINT The carpal bones SHARP CLAWS made up the wrist. Like all other flesh-eating theropods, Tyrannosaurus had sharp claws on its fingers. ELBOW JOINT The elbow was straightened by the humero-ulnaris muscle which ran from the fore arm PHALANX to the upper arm bone. This was one of the finger bones. The two-clawed fingers on each hand were very small in relation to Tyrannosaurus' huge body.
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