The term Ectodermal Dysplasias (ED) is used to describe inherited defects present at or just after birth, in which the body’s ectodermal structures fail to grow properly. The ectoderm or the outermost ...

THE generally accepted view as to the origin of the musculature of the Crustacea is that it is derived from the mesoderm. In Chirocephalus, while the majority of the muscles arise from the mesoderm, ...