What is the difference between fine and gross motor skill.

Motor skill refers to how you use your bodies muscles. Gross motor refers to large muscle groups and fine motor refers to small muscle groups. Gross motor skill are movements like running, jumping, and walking that require the use of the bodies larger muscles.  Fine motor skill are movements like mouth and finger movements that require the use of smaller muscle groups.  A person can have difficulty with their fine or gross motor skill or both.  Often, but not always if a person has poor gross motor muscle movements they also have weak muscles.  Poor gross motor skill related to weak muscles often lead to weak core strength.  People that have a weak core often have compromised fine motor skill as well. It is difficult to manipulate the small muscles of your body when the larger ones are not providing a stable base to work off of.