Which Letter On The Diagram Indicates Motile Structural Elements Of The Epithelial Membrane

C a basal lamina plus a layer of reticular fibers equals a basement membrane. There are three principal shapes of epithelial cell.

Anatomy Chapter 4 Quiz Flashcards Quizlet

Biol231 ch4 test.

Which letter on the diagram indicates motile structural elements of the epithelial membrane. Squamous columnar and cuboidal. It functions mainly to line surfaces in the body and lies on top of connective tissue to which it is anchored by a basement membrane consisting mainly of collagen fibers. They are numerous and arranged in rows in a single cell.

There are three principal shapes of epithelial cell. C a basal lamina plus a layer of reticular fibers equals a basement membrane. B they lie on opposite surfaces of the epithelium.

Epithelial tissue has several uses including absorption of materials protection from foreign sources providing a sense of touch secreting bodily fluids and transporting materials between cells. An example is the epidermis the outermost layer of the skin. The cell membrane is an extremely pliable structure composed primarily of back to back phospholipids a bilayer.

Epithelial tissues provide the bodys first line of protection from physical chemical and biological wear and tear. Epithelial tissues have five main characteristics. Most apical surfaces have microvilli small extensions of the plasma membrane that increase surface area.

Another type of motile cell processes larger than microvilli is seen in certain epithelial cells. B they lie on opposite surfaces of the epithelium. C a basal lamina plus a layer of reticular fibers equals a basement membrane.

Cholesterol is also present which contributes to the fluidity of the membrane and there are various proteins embedded within the membrane that have a variety of functions. It is larger than microvilli. Polarity all epithelia have an apical surface and a lower attached basal surface that differ in structure and function.

Epithelial tissues line the outer surfaces of organs and blood vessels throughout the body as well as the inner surfaces of cavities in many internal organs. Structural features of epithelial cells with diagram biology. D only the basal lamina can be seen by light microscopy.

Cilia have got resemblance to flagella. A top layer of epithelial tissue is joined to underlying connective tissue by a basement membrane. Squamous columnar and cuboidal.

D only the basal lamina can be seen by light microscopy. The difference between a basal lamina and a basement membrane is that a the basal lamina is thicker. Generalized functions of epithelial tissue.

For this reason epithelia is described as exhibiting apical basal polarity. The cells of an epithelium act as gatekeepers of the body controlling permeability and allowing selective transfer of materials across a physical barrier. The structure of epithelial membranes is basic.

Glands are also composed of epithelial tissue.

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