There are three different types of muscles in the human musculature: smooth, striped and cardiac muscle. Smooth muscle controls involuntary muscle movements, striped muscle executes voluntary movement and cardiac muscle makes up the heart itself. Most diagrams of the muscular system will omit smooth and cardiac muscles, and it is your choice whether to include them in your model. Red and white clay represents the striped muscle and connective tissue of the body.
Trace and cut the roll of paper in the shape of a body. How big your model will be will dictate how you go about sizing the body for the model. Trace the body of a small child for a large body, or draw the outline of a body on a smaller piece of paper for a small model. You will be able to see the muscles of the body better with a larger or life-size model.
Roll pieces of red clay into long strips to represent the muscles. Using a diagram of the front of the body, create muscle groups using the long red strips. Press the strips on to the paper or affix them to the paper using super glue. In the muscular system, muscles often overlap, so layer strips of clay on top of one another. Use white strips of clay to represent the connective tissue in between the muscles, joints and bones.
Turn the paper over and repeat this process on the back.
Label the muscles by writing their names on pieces of paper, and gluing the papers to the muscle groups.
You may have one side of the model be shallow muscles and the other side represent deep muscles.
Exercise caution when using scissors.