ralphza

Hi I know you know the anatomical terminology well and use it well. I have a little confusion regarding the term flexion. I have read https://en.wikipedia.org/wiki/Anatomical_terms_of_motion#Flexion_and_extension It says "Flexion ... decreases the angle...Extension is the opposite of flexion, describing a straightening movement that increases the angle between body parts" I am clear on the directions of the arm in shoulder flexion and shoulder extension as they're mentioned in this pic http://i.stack.imgur.com/bOrtx.png So the most shoulder flexion would be arm raised high, based on that picture. So all agree on direction, but if I look up degrees of shoulder flexion, for example I see http://i.stack.imgur.com/flMcY.gif So 180 degrees of shoulder flexion, the most shoulder flexion, is arm raised high in front. 0 degrees is arm completely lowered Videos discussing measuring shoulder flexion with a goniometer agree with that.. 180 degrees is arm raised high in front. 0 is arm completely lowered. But that doesn't seem to agree with wikipedia which says flexion decreases the angle. So i'm a bit confused over what seems contradictory.