1. More moveable part moves towards the less moveable part. 2. The distal bone/part moves towards the proximal bone/part.

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Mechanics of Movement II: Muscle Action Across Joints

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Presentation transcript:

1. More moveable part moves towards the less moveable part. 2. The distal bone/part moves towards the proximal bone/part

Origin:  Proximal attachment. ( Where the muscle starts)  Muscle contracts towards the origin  Less movable OR stationary part Insertion:  Distal attachment  More movable part

1. What aspect/view am I looking at? 2. How many joints does it cross? 3. Where is the more movable or distal attachment going to move?

 Using the skeletons….. 1. Put one end of rubber band on distal insertion (green dot). Hold on to rubber band. 2. Pull towards the proximal origin (red dot). Hold on to rubber band at the insertion. 3. Feel the body part spring into motion!