Lymphatic System
This system is a functional system which provides protection against invasion of the body by microorganisms and against some types of endogenous cells which have become abnormal.
Basic Tissue Properties
Dental professionals must have a clear understanding of the histology of the basic tissue types before studying the distinct tissue types present in the oral cavity and associated regions of the face and neck.
Cells
The smallest living unit of organization in the body is the cell, because each cell is capable of performing any necessary functions without the aid of other cells