Anatomy - Histology - Tissue Notes
Tissue- groups of closely associated cells that are similar in structure and performance Study of tissues- Histology Four Primary Tissue Groups- Epithelial-Connective-Muscle-Nervous Epithelial-covering (epithe=laid on, covering) occurs in the body as 1)covering and lining epithelium 2) glandular epithelium Found on all free surfaces of the body such as the outer layer of the skin, lining of open cavities of digestive and respiratory systems, lining of the blood vessels and heart, covering the walls and organs of the closed ventral body cavity. Functions of Epithelial Tissue protection absorption filtration excretion secretion Characteristics Cellularity---- composed almost entirely of cells