This model is used as a teaching apparatus showing the magnified microscopical structure of the skin with its appendages, blood vessels and nerves in the course of physiology and hygiene.
The model shows the structures of the human scalp as follows:
- Structure of the skin
- Epidermis: Showing the cornified layer (stratum corneum), germinal layer (stratum germinativum), and pores of sweat gland.
- Dermis (eorium): Showing:
(1) The papillary layer which is the superficial portion of the dermis and projects into corresponding depressions on the deep surface of the epidermis to form a multitude of eminences known as dermal papillae. Among the papillae, some of them contain blood vessels to be known as vascular papillae, while other including sensory nerve endings to be known as tactile papillae.
(2) The reticular layer which is the deep portion of the dermis and consists of coarse fibers, blood vessels, nerve fibers, lymphatics, excretory ducts of sweat gland, sebaceous glands and arrestor pili muscles.
- Hypodermis: Showing the presence of adipose tissue, large blood vessels and nerve fibers.
- Appendages of the skin