It is specialized to form the covering or lining of all internal and external surfaces.It is a made up of many cells that are closely packed with no intercellular spaces. It is separated from the underlying tissue by a basement membrane.This membrane provides structural support for the epithelial tissue.
Simple Epithelium: single layer of cells
Stratified Epithelium: multiple tiers of cells
Pseudo stratified: has a single layer, but the cells vary in length so it looks like it has many layers
Epithelial cells are similar to the shingles of a roof in that they are both flat and overlap. How does this structure aid in their function?
A. It allows the individual cells to shed more easily
B. It allows the whole structure of the skin to
be lightweight
C. It allows them to form a barrier to the outside
D. It allows them to use small amounts of space
Epithelial tissues are protective tissues that protect the skin and its underlying parts from mechanical injury, chemicals etc. It is present on the outermost layer of the skin.The stucture varies according to its type .eg squamous epithelium cells are sheet like irregular cells etc
How does the structure of epithelial tissue help it to perform its function?
Its ability to conduct electrical signals allows for control and coordination of body movements.
Its fibrous layers allow the tissue to be a strong yet flexible binding agent.
Its contractile cells that make up the tissue allow for movement.
Its tightly packed cells allow for protection against harmful substances.
It is a oval shape.
A group of epithelial cells organized to perform a common function would be a tissue.
Groups of similar cells working together for a similar function are called tissues. The four tissue types are; connective, nervous, epithelial, and muscular.tissuesTissues
epithelial tissue
Epithelial tissue
tissue is a group of cell working together . Tissue is a collection of cells with similar origin and similar structure(in most tissues) which perform a specific function or more.
A group of epithelial cells organized to perform a common function would be a tissue.
How is the function of nerve tissue different from that of epithelial tissue?
Groups of similar cells working together for a similar function are called tissues. The four tissue types are; connective, nervous, epithelial, and muscular.tissuesTissues
Muscles contract to move one three things, the blod, the organs or the bones. They do this with a method of overlappin proteins called actin and myosin. These proteins are not found in epithelial or connective tissue so they cannot contract.
A living cell is the smallest structure of that carries out specific functions.
Cells fall into 4 categories according to their structure and function. The four types of tissues are: Epithelial, Muscular, Nervous, & Connective.
A structure made of many similar cells to perform a simple function. That function depends on what kind of cells they are made of.
The function of epithelial tissue include: transportation of materials, protection of underlying tissues, absorption of water and nutrients and secretion of waste products.
Diffusion occurs across simple epithelial tissue. These are only one layer.
Covering surfaces
epithelial tissue
Cells are both the basic units of structure andfunction.An organ is a group of tissues that work together to perform a similar function, and a tissue is a group of cells that work together to perform a similar function.