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How does connective tissue hold body structures together?
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human body
Vintage anatomy charts of the human body showing the skeletal and muscle systems.
Connective tissue maintains the body's form and provides internal support by acting as a cohesive framework for organs and structures. It holds body parts together primarily through an extracellular matrix composed of structural proteins and adhesive molecules.12
The primary mechanisms include:
- Structural Fibers: Collagen is the most abundant protein, providing great tensile strength through its ropelike, triple-helix structure. These fibers are organized into dense bundles in tendons and ligaments to firmly connect muscles to bone and bones to each other. Elastin provides elasticity, allowing tissues to recoil.231
- Cellular Activity: Fibroblasts are the principal cells responsible for producing these fibers and the ground substance, an amorphous gel-like matrix that fills the spaces between cells and fibers.4
- Adhesive Proteins: Molecules like fibronectin and laminin act as biological glue, binding matrix components to one another and to cell surfaces to maintain tissue integrity.2