Histology

A group of similiar cells (& matrix) that work together to perform a specific structural or physiological role in an organ

Structure that is composed of two or more tissue types

Fibrous proteins and sugars; a clear gel (gound substance, tissue fluid, extracellular fluid-ECF, intestional fluid, or tissue gel

Stratified squamous epithelium (epidermis) over connective tissue (dermis)

Lines passageways open to teh external enviroment

Internal membrane (simple squamous epithelium over areorar connective tissues, covers organs and lines walls of bady cavities, secretes serous fluid

Lines joint cavities (connective tissue layer only; scretes synovial fluid)

Lines passages that open to the external enviromen (digestive, respiratory, urinary, and reproductive tracts

Consist of two to three layers:
Epithelium
Areolar Connective Tissues
Smooth muscle layer

absorptive, secretory, and protective functions; covered with mucus

Consist of one or more layers of closely adhering cells; only a small amount of intercellular material; no blood vessels, forms the covering and lining of organs and body cavities

Layer between epithelium and underlying connective tissue; anchors the two together; contains collagen, laminin, fabronectin, heparing sulfate

Cannot really see

Single row of thin cells, permits rapid diffusion or transport; secretes serous fluid

Ex: alveoli, glomeruli, endothelium, serous

Single layer of square or round cells; absorption adn secretion, mucus production and movement

Ex: Liver, thyroid, mammary, salivary glands, bronchioles, and kidney tubules

Single row tall, narrow cells, oval nuclei in basal half of cells, border microvilla, can be cilated and possess goblet cells

Absorption adn secretion; mucus secretion (ex lining of GI track, uterus, kindey, and uterine tubes

Wineglass-shaped mucus secreting gland cells found in simple columnar and pseudostratified epithelia

Looks multilayered; all touch basesment membrane; nuclei at several layers, has cilia and goblet cells; secretes adn propels mucus (ex: respiratory tract and male uretha)

Mulitiple cell layers with cells becoming flat and scaley toward surface; resist abrasion; retards water loss through skin; resist penetration by pathogenic organisms

(Ex: epidermis; palms and soles heavily kerantinzed)

Same as kerantinzed epithelium without the surface layer of dead cells; resist abrasion and penetration of pathogens (Ex: Tongue, oral mucosa, esophagus and vagina)

Difference between nonkerantized adn kerantize...