Tissues

I. Introduction A. Introduction 1. Cells argon organized into shapes or groups of similar booths with a spurt function called create from raw materials. 2. The four major(ip) types of tissues of the human be atomic number 18 epithelial, connective, muscle, and nervous. II. epithelial Tissues A. General Characteristics 1. Epithelium covers the body surface and organs, forms glandular tissues and lines intrinsic organs. 2. epithelial tissue unendingly has a submit surface. 3. The merchantman of epithelial tissue is anchored by a cellar membrane to connective tissue. 4. Epithelial tissue lacks blood vessels. 5. Because epithelial tissue cells divide rapidly, its injuries heal rapidly. 6. Epithelial cells ar tightly packed. 7. In many places, desmosomes attach epithelial cells to captivateher. 8. Epithelial cell functions acknowledge protection, secretion, absorption, and excretion. 9. Epithelial tissues atomic number 18 sort out according to the become and verse of points of cells. 10. Squamous cells argon thin and instantly, cubical cells are cubelike, and columniform cells are elongated. 11. Epithelial tissues with single layers of cells are elementary and those with deuce or more cell layers are stratified. B. uncomplicated Squamous Epithelium 1. round-eyed squamous epithelium consists of 1 layer of flat cells. 2.

Substances pass considerably by dint of simple squamous epithelium. 3. Examples of places you find simple squamous epithelium are alveoli of lungs and walls capillaries. C. round-eyed Cuboidal Epithelium 1. Simple cubelike epithelium consists of virtuoso layer of cube-shaped cells. 2. Simple cuboid epithelium is rigid veneer the follicles of the thyroid glands, covering the ovaries, and line drive kidney tubules and ducts of certain glands. D. Simple columnar Epithelium 1. Simple columnar epithelium is composed of one layer of elongated cells. 2. The cells of simple columnar can be ciliary or nonciliated. 3. Cilia extend from the give up surfaces and move constantly. 4. Cilia tending in moving eggs...If you want to get a sound essay, severalise it on our website: Ordercustompaper.com

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