Mature muscular system
Skeletal and muscular systems
What is the Muscular System? (with pictures)
Skeletal System and Muscular System
Description: Other pairs of opposing muscles are found all over the human body and each muscle controls a different type of movement, which we can combine into more complex movements like walking or typing on a computer. Not sure what college you want to attend yet? This slim body builder offers a brilliant example of just how good mature muscle can look. Exoskeletons restrict the growth of the animal, thus it must shed its exoskeleton or molt to form a new one that has room for growth. Exercise can increase the diameter and strength of bone; inactivity can decrease them.