title: Anatomy and physiology of the perionychium: a review of the literature and anatomic study.
abstract: The perionychium includes the nail and surrounding structures. The anatomy and physiology of the perionychium is presented in detail. Microscopic examination reveals the nail production to take place on the dorsal roof of the nail fold, the ventral floor of the nail fold, and on the nailbed to the free margin of the nail. The arterial supply is by two dorsal terminal branches of the proper digital artery and the nerve innervation by dorsal terminal branches of the proper digital nerve.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005385:Fingers / Q000033:anatomy & histology; D006801:Humans; D007223:Infant; D008875:Middle Aged; D009262:Nails / Q000033:anatomy & histology* / Q000502:physiology / Q000601:surgery