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Jeremy Carter
I screwed up a lot on the initial assignment images for the pecs because I was having trouble finding the insertion point for the pec major, so I went and got some more screengrabs to practice. Do you guys have any tips on how to find it, or have I done a serviceable job here? I assume it will get easier once I've done the bones of the arm lesson later on and get more familiar with the movement of it all. Any feedback would be appreciated, thanks.
Jesper Axelsson
Hi @Jeremy Carter, really nice studies! I had trouble with the insertion too :) It gets easier once you know the arm bones, and even easier when you know the arm muscles. I attached two images with some home made shortcuts. If I´m not mistaken the pec inserts at about the level of where the deltoid blends with the arm. Find where the deltoid blends; find the pec insertion - I would revisit image 4. Remember that in a lifted arms position everything is rotated; now the bottom edge of the clavicular portion appear highest instead of lowest. The clavicular portion in your tracing hasn´t rotated and is still in anatomical position - Your imagination drawing is well done! Just remember that the pec goes over the cylindrical form of the biceps I hope this helps :)
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