A motor skill is a skill that requires an organism to utilize their skeletal muscles effectively in a goal irected manner. Motor skills and motor control depend upon the proper functioning of the brain, skeleton, joints, and nervous system. Most motor skills are learned throughout the lifespan and can be affected by disabilities. Motor development is the development of action and coordination of one's limbs, as well as the development of strength, posture control, balance, and perceptual skills. There are two categories of motor skills: