Epithelium is one of the primary tissues. Typically it consists of cells that are closely opposed to one another and occur in various morphological types, thus producing tissues with rather scanty intercellular substance. The epithelial tissues are divided into two major groups: namely, the covering and lining epithelial membranes and second the glandular epithelium.
	Covering & Lining Epithelium Simple Squamous Simple Cuboidal Simple Columnar Pseudostratified Columnar Stratified Squamous Nonkeratinizing Stratified Squamous Keratinizing Transitional Stratified Cuboidal Pigmented		Glandular Epithelium Unicellular Glands Simple Glands Compound Glands Endocrine Glands
	Connective tissue along with epithelium, muscle and nervous tissue is one of the four basic tissues. Connective tissue is characterized by an abundance of intercellular substance, or matrix. Connective tissue is composed of three structural entities namely an amorphous ground substance, fibers and cells. The ground substance is often difficult to demonstrate histologically, sometimes occurring as a fine granular precipitate.
	Connective Tissue Fibers Collagen fibers Elastic fibers Reticular fibers Oxytalan fibers Connective Tissue Cells Fibroblasts Macrophages Neutrophils Lymphocytes Plasma cells Mast cells Reticular cells		Connective Tissue Types Mucous Connective Tissue Mesenchymal Connective Tissue Loose Areolar Fibrous Connective Tissue Dense Interlacing Fibrous Connective Tissue Dense Parallel Connective Tissue Dense Regular Elastic Connective Tissue Reticular Connective Tissue Adipose Connective Tissue Brown Adipose Tissue
	Hyaline Cartilage		Elastic Cartilage		Fibrocartilage
	Bone is a specialized connective tissue, with cells and a fibrous matrix that has been impregnated with mineral salts. Cancellous bone has a spongy appearance with irregular marrow spaces and thin spicules or trabeculae of bone. Compact bone, on the other hand, is dense with a regular pattern of bony layers.
	Cancellous Bone		Compact Bone		Intramembranous Bone Formation   Endochondral Bone Formation
	Smooth Muscle		Skeletal Muscle		Cardiac Muscle
	The Neuron				Peripheral Nerves