connective tissue
DESCRIPTION
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 - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/1.jpg)
CONNECTIVE TISSUEKEEPING THE BODY TOGETHER
![Page 2: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/2.jpg)
FUNCTIONS OF CONNECTIVE TISSUE: Interconnection of tissues Support and motion Storage Cushioning and insulation Enclosing and separating Transport protection
![Page 3: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/3.jpg)
CHARACTERISTICS OF CONNECTIVE TISSUE 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
![Page 4: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/4.jpg)
WHAT IS A MATRIX? The acellular substance of a tissue The matrix is made by the cells of that tissue The matrix gives the tissue its qualities
This is the cell
![Page 5: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/5.jpg)
LOOSE CONNECTIVE TISSUE Large spaces between fibers filled with
fluid or cells Examples: Areolar, adipose, and
reticular
![Page 6: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/6.jpg)
ADIPOSE TISSUE (FAT) Little extracellular matrix Adipocytes filled with lipids Function: storage, thermal insulation,
cushioning Found: below skin, yellow bone
marrow, in spaces and crevices
![Page 7: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/7.jpg)
AREOLAR TISSUE: Has a fine network of fibers Contains fibroblasts, macrophages, and
lymphocytes Function: support and nourishment Found: Around and between muscles,
vessels, nerves, and organs
![Page 8: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/8.jpg)
![Page 9: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/9.jpg)
RETICULAR TISSUE Fine network of reticular fibers irregularly
arranged Spaces contain macrophages and blood cells Function: provides structure for lymphatic
tissue and red bone marrow
Found around the liver, spleen, kidneys, lymph nodes, and bone marrow
![Page 10: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/10.jpg)
DENSE CONNECTIVE TISSUE - REGULAR Densely packed fibers with little space
in between Fibers are mostly collagen Fibers run in one direction
![Page 11: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/11.jpg)
CONTINUED… Functions: withstand tremendous
pulling forces in the direction of the fibers, stretch resistance
Found: in tendons and ligaments
![Page 12: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/12.jpg)
DENSE IRREGULAR CONNECTIVE TISSUE 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
![Page 13: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/13.jpg)
ELASTIC CONNECTIVE TISSUE Matrix made of elastic and collagen fibers Function: able to stretch and recoil Found in: walls of arteries, elastic
ligaments in the spine
![Page 14: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/14.jpg)
HYALINE CARTILAGE 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
![Page 15: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/15.jpg)
CONTINUED. . . . Found: ends of long bones, articular
surfaces, ribs, nose, respiratory system, and the embryonic skeleton
![Page 16: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/16.jpg)
FIBROCARTILAGE Numerous collagen fibers in thick
bundles Function: withstand pressure,
connects structures subjected to great pressure
Found: intervertebral discs, pubic symphysis, knee, temporomandibular joint
![Page 17: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/17.jpg)
ELASTIC CARTILAGE 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
![Page 18: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/18.jpg)
BONE Hard connective tissue made by
cells(osteocytes) that sit in a mineralized matrix
Function: provide great strength and support, protection, movement
Found: the skeleton
![Page 19: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/19.jpg)
![Page 20: Connective tissue](https://reader036.vdocuments.net/reader036/viewer/2022062501/56816778550346895ddc77dd/html5/thumbnails/20.jpg)
BLOOD Liquid connective tissue Blood cells are in a fluid matrix called
plasma. Function: transport, protection,
temperature regulation