All of the following are usually characteristics of epitheli

All of the following are usually characteristics of epithelium except: abundant extracellular material highly mitotic tight junctions or desmosomes avascular Which of the following types of epithelial tissues is best suited for areas of the body where diffusion or filtration occurs? pseudostratified ciliated columnar stratified squamous simple cuboidal simple squamous Which muscle type has no visible striations? Cardiac Cardiac and Skeletal Smooth Skeletal

Solution

5]

All of these are usually characteristics of epithelium except

Abundant extracellular material

The general characteristic of epithelial tissue is that the cells are closely packed together. They lack blood vessels and obtain nourishment through diffusion. They are so closely packed, epithelial cells have little matrix between them

6]

Which of the following types of epithelial tissues is best suited for areas of the body where diffusion or filtration occur

Simple sqauamous

There are three basic types of epithelial cells: squamous, cuboidal and columnar. The squamous cells are thin and look like scales.

7]

Which muscles types has no visible striations

Smooth

Smooth muscle cells have a single centrally located nucleus. Smooth muscle cells do not have visible striations although they do contain the same contractile proteins as skeletal and cardiac muscle.