title: The anatomy of the philtrum: observations made on dissections in the normal lip.
abstract: Cadaver dissections and histological studies were performed on the philtral region of eight adults and four foetal lips to elucidate the detailed anatomy of the orbicularis oris muscle in the intact normal lip. The findings are correlated with clinical observations on lip function and modifications of technique are suggested that might improve the results in cleft lip repair.
mesh_terms: D000328:Adult; D002971:Cleft Lip / Q000601:surgery; D005152:Facial Muscles / Q000033:anatomy & histology; D006801:Humans; D008046:Lip / Q000033:anatomy & histology* / Q000196:embryology / Q000502:physiology