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Articulations

Joint Articulations

QuestionAnswer
Joint Function allow movement and hold the skeleton together
Classification based on movement they allow (functional) or material binding (structural)
Fibroblast always present, secretes hyaluron and proteins
Fibrocyte maintains connective tissue
Adipocyte stores energy and insulation
Mesenchymal Cells connective tissue proper in embryo
Collagen long, straight, tough, high resistance to longitudinal stress
Elastin randomly coiled structure of rubbery quality
reticular fibers fine branched collagenous fibers; form delicate network of fibers
Areolar Tissue wraps and cushions organs and distributes nutrients
Adipose Tissue cushions shock, stores energy, located at sides and but
Reticular Tissue provides supporting framework for tissues undergoing multidirectional stress; located at liver kidney etc.
Dense Regular Connective Tissue provides firm attachment and conducts pull of muscles; ligaments and tendons
Dense Irregular Connective Tissue provides strength to resist forces applied from many directions; forms periosteum locatd in nerve and muscle sheaths
Elastic Tissue stabilizes positions of vertebrae and penis, also cushions shock; located between vertebrae and in ligaments of penis
Cartilage many collagen fibers and some elastic fibers
Chondrocytes cells within lacunae
Hyaline Cartilage amorphous and glassy; support but flexible; between tips of ribs and bones of sternum
Elastic Cartilage contains more elastic fibers than hyaline, very resistant to bending; external ear, epiglotis, auditory canal
Fibrocartilage many collagen fibers, strong support and ability to withstand heavy pressure; pads within knee joints and intervertebral discs
Articular Capsule contains inner synovial membrane and outer fibrous capsule
Inner Synovial Membrane produces synovial fluid
Joint Cavity contains a small amount of synovial fluid
Articular Cartilage made of hyaline cartilage; functions as spongy cushion that absorbs compression force of joint
Synovial Fluid derived by filtration from the blood; viscous and egg white; reduces friction
Synovial Joints reinforce ligaments
Created by: rlmurp09
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