Simple Epithelial Columnar are single layers of tall cells with a round oval nuclei and some cells contain cilla. Layers may also contain mucus-secreting unicellular glands or goblet cells. The nucleus is elongated from top to bottom and usually located next to the cell base.
The Psuedostratified Columnar is the thick membrane made up of several cell layers. The basal cells are cubodial or columnar and are metabolically active and the surface cells are flat. The nuclei lie at different levels above the basement membrane and give the false impression that several cell layers are present.
The stratified squamous are thick membrane composed of several cell layers. The basal cells are cuboidal or columnar and they are metabolically active and they produce the flat outside layer and get there energy through mitosis.
Skeletal muscles or also called muscle fibers are long, cylindrical cells containing numerous nuclei. They are banded or striated, like alignment of mircofilaments. There are obvious striations in the skeletal muscle as well.
The smooth muscle is called smooth because it has no visible striations. The individual cells are spindle shaped and have one centrally located nucleus. Also the cells are arranged closely to form sheets.
Connective tissue is found all throughout the body. It is the most prominent and distributed of all the primary tissues. Also blood, cartilage and bone are considered connective tissues. There are three main elements.
The reticular tissue is closely related to the areolar tissue but the only fibers in its matrix are reticular fibers, which form the delicate networks along with the fibroblasts called reticular cells.
The Adipose Tissue is similar to the structure and function of the areolar tissue but is much greater in the nutrient-storing ability. The cells are packed close together and the matrix is scanty. Also sometimes described as white fat, brown fat, white adipose tissue, or brown adipose tissue.
Dense Irregular Connective Tissue has the same structural elements as Regular Connective Tissue but the bundles of collagen fibers are much thicker and are arranged irregularly, and they run in one plane.