The vertebrate dermis and the integumental skeleton

Abstract

SYNOPSIS The comparative histology of the dermis is reviewed Some recent data on the connective tissue components of this vertebrate organ are summarized with emphasis on collagen and ground substance The biomechamcal role of the dermis is stressed within the concept of the integumental skeleton The series of homologous developmental events involved in the formation of these 'skeletal structures are described, with some emphasis on the hypothesis of epidermal co participation Finally a classification of the spectrum of integumental skeletal structuies is given. © 1972 by the American Society of Zoologists.