Stratified epithelial tissue has layers of specialized epithelial cells that protect the interior of the organism.

Epithelial Tissue: Epithelial cells are closely packed … Two forms occur in the human body: Covering and lining epithelium– forms the outer layer of the skin; lines open cavities of the digestive and respiratory systems; covers the walls of organs of the closed ventral body cavity.

The apical side always faces out of the body (outside or into a lumen). Characteristics of Epithelial Tissue.

All epithelial tissues have these common characteristics: They form sheets of tightly bound cells or roll into tubes. Epithelial cells are closely attached to each other (especially compared to muscles and connective tissue). The human body consists of four types of tissue: epithelial, connective, muscular, and nervous.

The tight junction in cells also called Occluding Junctions because they prevent the flow of material.

2. The most basic characteristic of epithelial tissue is that it covers the surfaces of the body, whether external or internal. Epithelial Tissue is one of the four types of tissue (epithelial, muscular, connective, and nervous) in animals which consists of closely aggregated polyhedral cells adhering firmly to one another, forming cellular sheets that line the interior of hollow organs and cover the body surface.

Characteristics of epithelium tissue Polarity- Epithelium is arranged so there is one free surface ( apical surface ) and one attached surface ( basal surface ) Cellular nature – Cells in epithelium fit closely together side by side and sometimes atop each other to form sheets of cells. Epithelial tissue is a sheet of cells that covers a body surface or lines a body cavity. Characteristics of Epithelial Tissue 1. Epithelial Tissue: Epithelial tissue line the cavity and surfaces of organs and blood vessels throughout the animal body. Epithelial tissue covers body surfaces and forms glands that are derived developmentally from body surfaces. Epithelium always has a free surface (apical surface) that is exposed to the body’s exterior or the empty cavity of … Epithelial tissue covers the body, lines all cavities, and composes the glands. Epithelial tissue covers a body surface or lines a body cavity and is present on almost all glands. They form a continuous layer controlling access to interior organs.

... Special characteristics of Epithelia. Generalized Functions of Epithelial Tissue . Epithelial tissue (epithelium) General characteristics of epithelium Is avascular tissue (without blood supply – cells receive nourishment by diffusion from a highly vascular area of loose connective tissue just below the basement membrane called the lamina propria) is highly cellular tissue – cells are arranged to form cohesive sheet or

The cells of this epithelium are arranged in a neat row with the nuclei at the same level, near the basal end. The body surfaces include the exterior surface, the lining of the digestive and respiratory yracts, the heart and blood vessels, and the linings of many body cavities. Simple Columnar Epithelium Definition. They are found on all exterior surfaces of the body and line interior cavities, blood vessels and gland ducts. High Cellularity (cells separated by minimal amounts of ECM) Specialized contacts (cells joined by special junctions) Epithelial tissues provide the body’s first line of protection from physical, chemical, and biological wear and tear.

This is achieved by the tight junction lies between two epithelial cells. Functions of Epithelia. Epithelial cells have two different “sides”—apical and basolateral. Simple columnar epithelia are tissues made of a single layer of long epithelial cells that are often seen in regions where absorption and secretion are important features.

Epithelial cells lie on the basement membrane. Describe the primary functions and characteristics of epithelial tissue. Sloughing off of damaged or dead cells is a characteristic of surface epithelium and allows our airways and digestive tracts to rapidly replace damaged cells with new cells.

Characteristics of Epithelial Tissue: Epithelial tissues separate two structures from each other.