motor system subtypes: fine and gross

motor system
--fine motor system
--gross motor system

Fine motor system
A motor system that coordinates muscles, bones, and nerves to produce small, exact movements of the hands and fingers. An example of fine motor control is picking up a small item with the index finger (pointer finger or forefinger) and thumb.

Gross motor system
A motor system that coordinates muscles, bones, and nerves to produce large, gross movements of large body parts. An example of gross motor control is walking and running.

Source: https://medlineplus.gov/ency/article/002364.htm?utm_source=email&utm_medium=share&utm_campaign=mplus_share

Feldman HM, Chaves-Gnecco D. Developmental/behavioral pediatrics. In: Zitelli BJ, McIntire SC, Nowalk AJ, eds. Zitelli and Davis' Atlas of Pediatric Physical Diagnosis. 7th ed. Philadelphia, PA: Elsevier; 2018:chap 3.

Kelly DP, Natale MJ. Neurodevelopmental and executive function and dysfunction. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 48.

https://orcid.org/0000-0001-9114-8737

(probably could use a bit more thought RE defs and parts but is needed for developmental aspects in OBA and HPO)

Start by reviewing the proposed fine motor system and gross motor system definitions and the cited MedlinePlus and pediatric references. Confirm the definitions and ontology relationships with the developmental use cases in OBA and HPO; done means the two subtypes and their terms are added consistently to UBERON.