1. The ultrastructural integrity of adaxial apple leaf cuticles was studied after their isolation from subjacent leaf tissues by several widely used procedures.

2. The lining mucosa that covers the alveolar process. It consists of a non-keratinized lining epithelium and the subjacent alveolar submucosa.

3. Ageing skin is usually associated with a sagging face, in which deeper tissues (i.e., subjacent soft tissue) and structural landmarks lose their resiliency.

4. 1- Zonula Adherens: It is a belt-like specialization of the cell membrane and the subjacent cytoplasm that encircles the apical part of the 2 adjoining cells