description of types of epithelial tissue
Answers
there are 4 types of epithelial tissues:
1. simple squamous
2. simple Cuboidal
3. simple columnar
4. pseudostartified
Answer:
epithelial tissues : Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands. Epithelial cells may be squamous, cuboidal, or columnar in shape and may be arranged in single or multiple layers.
Squamous : A simple squamous epithelium is a single layer of flat cells in contact with the basal lamina (one of the two layers of the basement membrane) of the epithelium. This type of epithelium is often permeable and occurs where small molecules need to pass quickly through membranes via filtration or diffusion.
cuboidal : Simple cuboidal epithelium is a type of epithelium that consists of a single layer of cuboidal (cube-like) cells. These cuboidal cells have large, spherical and central nuclei. ... On these surfaces, the cells perform secretion and absorption.
columnar : 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. The cells of this epithelium are arranged in a neat row with the nuclei at the same level, near the basal end.
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