The major contour muscles in the human body are the trapezius muscle, infraspinatus muscle, deltoid muscle, teres major, teres minir, triceps, latissimus, Sartorius, Gluteous medius and major, quadriceps, biceps femoris, triceps surae, peroneous longus, tibialis anterior, adductor magnus, semimembraneous muscle, gastrocnemius muscle, soleous and flexor hallucis longus. Contour muscles are muscles that give shape or “contour” to the body.
The muscular system is made up of tissues that work with the skeletal system to initiate and control body movements. All eight major muscle groups in the human body, shoulders, arms, back, abdomen, chest, butt, thighs and calves, have contour muscles. There are over 650 skeletal muscles in the body, although some authorities state that there are as many as 850. All the major contour muscles are skeletal muscles.
Skeletal muscles have to be attached to a bone that moves when they contract (insertion point) at one end while the other end is attached to a bone that does not move when the muscle contracts (the origin). However, contour muscles can be attached to other muscles and even the skin.
Apart from contouring the body and initiating movement, these muscles also stabilize joints and help maintain posture. The size and shape of contour muscles varies between men and women, and this, along with differences in body structure, is what determines feminine or masculine body shapes.