BIGGER CHEST
ANATOMY OF CHEST IT COMPOSED OF TWO HEADS I. UPPER HEAD MIDDLE HEAD LOWER HEAD UPPER HEAD ATTACHES WITH CLAVICLE AND LOWER HEAD ATTACHES WITH STERNUM NOW, IT IS IMPORTANT TO KNOW HOW THE FIBERS RUN BECAUSE IT IS THE STRUCTURE THAT DETERMINES WHAT THE MUSCLE DOES AND IN TURN HOW YOU SHOULD TRAIN THEM. UPPER FIBERS RUNS DOWNWARDS MIDDLE FIBERS RUNS STRAIGHT ACROSS LOWER FIBERS RUN UPWARD * IF YOU JUST IMAGINE THE FIBERS OF DIFFERENT HEADS CONTRACTING OR SHORTENING THEY WILL PULL TO BRING THE ORIGIN AND INSERTION POINTS CLOSE TO ONE ANOTHER.SO IT BASICALLY BRINGS THE UPPER ARM OVER AND ACROSS THE BODY. SOMETHING CALLED TRANSVERSE :- REFERRING TO HORIZONTAL PLANE OF MOTION SHOULDER :- REFERRING TO THE JOINT WHERE ROTATION HAPPENS ABDUCTION :- MEANING MOVEMENT TOWARDS THE BODY MID LINE BECAUSE THE UPPER FIBERS RUN DESCENDINGLY THEY ALSO ASSIST YOUR SHOULDER FLEX ION OR BRINGING THE ARM