| The reactive epithelium may extend into the superficial reticular dermis, simulating a carcinoma. |
| The dermis or corium underlying the epidermis is 0.3 to 4.0 mm in thickness and may be divided into two layers, papillary and reticular. |
| Hair follicles and smooth muscle, sweat and sebaceous glands, and Pacinian corpuscles are located in the reticular layer. |
| The most common pattern of oral disease reveals a reticular network of white hyperkeratosis on the buccal mucosa. |
| For example, it is possible that the brainstem reticular formation is divided into the same number of nuclei in all jawed vertebrates. |
| Occasionally, the upper reticular dermis also may be infiltrated, but by isolated single cells. |
