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Connective tissue

KEEPING THE BODY TOGETHER. Connective tissue. Interconnection of tissues Support and motion Storage Cushioning and insulation Enclosing and separating Transport protection. Functions of connective tissue:. Cells produce and maintain a matrix

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Connective tissue

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  1. KEEPING THE BODY TOGETHER Connective tissue

  2. Interconnection of tissues Support and motion Storage Cushioning and insulation Enclosing and separating Transport protection Functions of connective tissue:

  3. Cells produce and maintain a matrix The cells are not usually touching – they sit within the matrix they produce The matrix allows connective tissue to perform its job Characteristics of connective tissue

  4. The acellular substance of a tissue The matrix is made by the cells of that tissue The matrix gives the tissue its qualities WHAT IS A MATRIX? This is the cell

  5. Large spaces between fibers filled with fluid or cells Examples: Areolar, adipose, and reticular Loose connective tissue

  6. Little extracellular matrix Adipocytes filled with lipids Function: storage, thermal insulation, cushioning Found: below skin, yellow bone marrow, in spaces and crevices Adipose tissue (fat)

  7. Has a fine network of fibers Contains fibroblasts, macrophages, and lymphocytes Function: support and nourishment Found: Around and between muscles, vessels, nerves, and organs Areolar tissue:

  8. Fine network of reticular fibers irregularly arranged Spaces contain macrophages and blood cells Function: provides structure for lymphatic tissue and red bone marrow Reticular Tissue Found around the liver, spleen, kidneys, lymph nodes, and bone marrow

  9. Densely packed fibers with little space in between Fibers are mostly collagen Fibers run in one direction Dense connective tissue - regular

  10. Functions: withstand tremendous pulling forces in the direction of the fibers, stretch resistance Found: in tendons and ligaments Continued…

  11. Fibers run in several directions Function: provide strength in many directions, but not as strong in a single direction as DRCT Found: organ capsules, the dermis of the skin Dense irregular connective tissue

  12. Matrix made of elastic and collagen fibers Function: able to stretch and recoil Found in: walls of arteries, elastic ligaments in the spine Elastic connective tissue

  13. Collagen fibers in a firm, flexible matrix Chondrocytes (the cartilage cells) sit in lacunae Function: growth of long bones, support and flexibility in trachea, bronchi, ribs, and nose Makes up the embryonic skeleton Covers articulating surfaces Hyaline cartilage

  14. Found: ends of long bones, articular surfaces, ribs, nose, respiratory system, and the embryonic skeleton Continued. . . .

  15. Numerous collagen fibers in thick bundles Function: withstand pressure, connects structures subjected to great pressure Found:intervertebral discs, pubic symphysis, knee, temporomandibular joint fibrocartilage

  16. Similar to hyaline cartilage but matrix also has elastic fibers Function: rigidity with flexibility, can stretch and return to original shape Found: external ear structure, epiglottis, auditory tubes Elastic cartilage

  17. Hard connective tissue made by cells(osteocytes) that sit in a mineralized matrix Function: provide great strength and support, protection, movement Found: the skeleton bone

  18. Liquid connective tissue Blood cells are in a fluid matrix called plasma. Function: transport, protection, temperature regulation blood

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