Flexion of the arm is defined as the movement of bringing the upper limb anteriorly in the sagittal plane. During this movement, the arm is moved forward and upward. This occurs when the arm is raised in front of the body, such as when reaching forward or lifting something.💡 Extension of the arm, in contrast, involves moving the arm backward and away from the body. This movement happens when the arm is brought down from a flexed position or extended backward, such as when reaching behind the bo

56K views · 13K reactions | A look at the muscles at work during arm...

Brachialis muscle action Elbow: Flexion #muscle #anatomy | PhysioFixers