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Tissues 3

Connective Tissue Types

TypeComponentsLocationClass
adipose (fat) functions - energy, heat insulation, mechanical cushion; ground substance: semi-solid gelatinous material, made up of hyaluronic acid; cells are lipid-filled (adipocytes); fibers: collagen below the skin, surrounding internal organs; fat - examples, mammary glands, hypodermis loose connective tissue proper
dense regular ground substance: sparse; fibers: collagen fibers arranged in parallel bundles; cells: fibroblasts (the nuclei are elongated in the direction of the fibers); primary function is mechanical support ligaments (connect bone to bone); tendons (connect muscle to bone); aponeurosis (connect muscle to muscle); dense connective tissue proper
dense irregular ground substance: very scant; fibers: collagen, irregularly arranged; cells: fibroblasts found where tension is exerted from many directions; found in the dermis of the skin dense connective tissue proper
reticular ground substance: hyaluronic acide (gelatinous material); fibers: reticular (fibers are few and loosely arranged); cells: fibroblasts (called reticular cells) lymph nodes and bone marrow loose connective tissue proper
cartilage ground substance: chondroitin sulfate; fibers: collagen & elastic; cells: chondroblasts (immature) & chondrocytes (mature); cartilage is tough but flexible and has no blood supply (avascular) and no nerve supply hyaline: articular sufraces of long bones (i.e. femur, tibia); fibrocartilage: between vertebrae (intervertebral discs) and the pubic symphysis; elastic cartilage: ear, epiglottis cartilage
bone ground substance: hydroxy apatite; cells: osteoblasts & osteocytes; fibers: collagen; bones have both blood supply and nerve supply skeleton bone
areolar (fascia) ground substance: hyaluronic acid (gelatinous material); fibers: collagen; cells: fibroblasts function: strength, elasticity, support, and immune system protection; also binds parts of the body together and lubricates & nourishes epithelial tissue wraps around blood vessels, nerves, organs loose connective tissue proper
Created by: debmurph
 

 



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