The<unk> , also known as the<unk> nal<unk><unk> , is a layer of columnar cells located on the rim nearest the dental papilla of the<unk>  organ in a developing tooth. This layer is first seen during the cap stage, in which these<unk>  cells are pre-ameloblast cells. These will differentiate into Ameloblasts which are responsible for secretion of<unk>  during tooth development. The location of the<unk>  organ where the outer and<unk>  join is called the cervical loop.
Inner enamel epithelium
Neuromatrix
Otic vesicle
Epicles
Germinal matrix
Epidermal differentiation complex
Nodule of vermis
Fibrous cap