These are easily displayed on a person who has developed their physique for show or physical performance. Below is a list of muscles which may help to diagram and draw the figure. Front - The shoulder muscles are called deltoids . These triangular muscles define the upper shoulders. The palmaris longus muscle will protrude in the wrist area when you make a fist and flex your biceps.
Biceps are easily recognizable large bumps on the upper inside of the arm.
These have been used by artists to symbolize physical strength especially in men. The pectoralis muscles span the chest. They are often developed by body builders and also are used to symbolize strength. The abdominal muscles create rhythms and changes in the stomach area. They are generally drawn as four vertical segments next to four others.