Tissues B L A K E

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Tissues B L A K E

  1. 1. Tissues By Blake Allen Epithelial Tissue Connective Tissue
  2. 2. Epithelial Tissues <ul><li>Simple Epithelial- Made up entirely of single cell layers </li></ul><ul><li>Stratified Epithelial- consists of two or more layers of cells </li></ul><ul><li> </li></ul>Credits Simple Epithelial Stratified Epithelial
  3. 3. Simple Squamous Epithelium <ul><li>Found in the Kidneys and in the lungs. </li></ul><ul><li>The purpose is diffusion or filtration. </li></ul><ul><li>There are two main types. </li></ul><ul><li>Endothelium, provides a friction free surface , found mostly in the cardiovascular system. </li></ul><ul><li>Mesothelium, found in serous membranes that line the ventral body cavity. </li></ul>
  4. 4. Stratified Epithelial <ul><li>Psuedostratified Columnar Epithelial- These cells vary in height so only the taller cells reach the free surface. </li></ul><ul><li>Stratified Squamous Epithelium- Several layers of pancake like cells. </li></ul><ul><li>Stratified Cuboidal and Columnar Epithelium- Very rare in the ,made of two layers, found mostly in the ducts of larger glands such as sweat glands and mammary glands. </li></ul>Psuedostratified Columnar Stratified Cuboidal and Columnar Stratified Squamous
  5. 5. Psuedostratified Columnar Epithelium <ul><li>These cells vary noticeably in height. </li></ul><ul><li>All of the cells are planted on a common ground substance, however only the tallest reach the open area. </li></ul><ul><li>This really is not stratified the word psuedo means false, so it gives the appearance of being stratified but it isn’t. </li></ul><ul><li>This epithelium secretes or absorbs substances and can be found mainly in the respiratory tract. </li></ul> Home
  6. 6. Simple Epithelial <ul><li>Simple Squamous Epithelium- Only one very thin layer of flattened cells. </li></ul><ul><li>Simple Cuboidal Epithelium- One layer of cube shaped cells that are just as tall as they are wide. </li></ul><ul><li>Simple Columnar Epithelium- One layer of tall skinny cells packed closely together. </li></ul><ul><ul><ul><li>Home Simple Squamous Simple Cuboidal Simple Columnar </li></ul></ul></ul>
  7. 7. Simple Cuboidal Epithelium <ul><li>Made up of one layer of cells that are equally wide as they are tall. </li></ul><ul><li>This tissue’s function is also secretion and absorption </li></ul><ul><li>Found mainly on the walls of small ducts and glands and kidney tubules. </li></ul> Home
  8. 8. Credits Pictures courtesy of Blake Allen from Flickr.com
  9. 9. Stratified Cuboidal and Columnar Epithelium <ul><li>These tissue types cannot be found in many places. </li></ul><ul><li>Stratified cuboidal are mostly in ducts and larger glands. </li></ul><ul><li>Usually only two layers of cube shaped cells. </li></ul><ul><li>Stratified columnar can be found in the pharynx, male urethre, and some glandular ducts. </li></ul> Home
  10. 10. Stratified Squamous Epithelium <ul><li>The most abundant type of epithelial tissue in the body. </li></ul><ul><li>Made of several layers of pancake shaped cells. </li></ul><ul><li>Found in areas that are subject to a lot of wear and tear. </li></ul><ul><li>This is the epithelial tissue that makes up the outer portion of the skin. </li></ul> Home
  11. 11. Simple Columnar Epithelium <ul><li>A single layer of tall tightly packed cells. </li></ul><ul><li>Main purpose is secretion and absorption. </li></ul><ul><li>Found in the digestive tract. </li></ul><ul><li>There are two main parts, dense microvilli that absorb, and goblet sells that secrete. </li></ul> Home
  12. 12. Connective Tissue <ul><li>There are four main classes of connective tissues. </li></ul><ul><li>Connective tissue proper, Cartilage, Bone Tissue, and blood. </li></ul><ul><li>Connective tissue does more than just connect things together it is used for transportation, protection,m insulation, and binding and support. </li></ul> Credits Proper Tissue Cartilage Bone Tissue Blood
  13. 13. Connective Tissue Proper <ul><li>There are two classes of connective tissue proper. </li></ul><ul><li>Loose Connective Tissues </li></ul><ul><li>Dense Connective Tissues </li></ul>Loose Connective Tissue Dense Connective Tissue
  14. 14. Cartilage <ul><li>Cartilage can stand up to both tension and compression. </li></ul><ul><li>Cartilage is avascular and contains no nerve fibers. </li></ul> Home
  15. 15. Bone Tissue <ul><li>Also known as Osseous Tissue, the main purpose is to support and protect body organs. </li></ul><ul><li>Bone tissue is very similar to cartilage however it is much stronger and more brittle, due to an added calcium salt. </li></ul> Home
  16. 16. Blood <ul><li>The fluid within blood is also considered connective tissue even though it does not connect anything it is classified as such because it developed from mesenchyme. </li></ul><ul><li>This is called blood plasma. </li></ul><ul><li>The main purpose is transportation. </li></ul> Home
  17. 17. Loose Connective Tissue <ul><li>Loose Connective Tissue consists of three main types. </li></ul><ul><li>Areolar </li></ul><ul><li>Adipose </li></ul><ul><li>Reticular </li></ul> Home
  18. 18. Dense Irregular Connective Tissue <ul><li>Has almost identical struucture to regular dense connective tissue. </li></ul><ul><li>Dense Irregular connective tissue produce a kind of web in the body. </li></ul><ul><li>Found in the skin and in fibrous caps on joints. </li></ul> Home
  19. 19. Dense Connective Tissue <ul><li>There are two types of dense connective tissue. </li></ul><ul><li>Dense regular connective tissue. </li></ul><ul><li>Dense irregular connective tissue. </li></ul> Home Dense Regular Dense Irregular
  20. 20. Dense Regular Connective Tissue <ul><li>Made mostly of fibers, also referred to as fibrous connective tissue. </li></ul><ul><li>Made up of tightly packed bundles of collagen fibers, that run in the same direction. </li></ul><ul><li>Mostly found in tendons and in a few ligaments. </li></ul> Home

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