A collection of posts about headaches that come out of your neck: includes specific patterns like those in the pics.
Better yet, there are posts about self-care for each type of headache!
Find your specific pattern.
Get relief.
The revised and reformatted version of serratus anterior. For supporters, there's an additional posterior view of the serratus anterior, something I've seldom seen.
https://integrativeworks.com/serratus-anterior-functional-anatomy/
One of the updated illustrations showing the three bellies of infraspinatus and how the lower belly attaches to the tendon of teres minor.
We've changed the format to start with a simple overview as often taught to new musculoskeletal students. That is followed by a more detailed section on attachments, function, and anomalies.
https://integrativeworks.com/infraspinatus-functional-anatomy/