Motor skills that require greater control of the small muscles than large ones, esp. those needed for hand-eye coordination, and those that require a high degree of precision in hand and finger movement. Examples of these motor skills include handwriting, sewing, and fastening buttons. It is important to note that most movements require both large and small muscle groups, and that although there is considerable overlap between fine and gross motor skills, a distinction between the two is useful in rehabilitation settings, special education, adapted physical education tests, motor development tests, and industrial and military aptitude tests.