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How do connective tissues support and hold body structures together?
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Physiology
Adenosine triphosphate (ATP) is the power source of many biochemical reactions. It is produced in the cell structures and system listed at the left to energize the important life processes listed on the right. An abbreviated chemical formula of the structure of ATP is also shown. The two high-energy P―O―P bonds are responsible for its power.
Connective tissues maintain the body's form and provide internal cohesion by acting as a structural framework for organs and tissues. They support body structures through several specialized mechanisms:1
- Tensile Strength: Many connective tissues, such as tendons and ligaments, are composed of dense fibrous tissue containing bundles of collagen. These fibers are highly resistant to stretching, allowing the body to withstand tension and force during movement.12
- Structural Scaffolding: Collagen serves as a primary component of the extracellular matrix, providing a framework for tissues and organs. In bone, this framework supports the deposition of minerals, creating a rigid structure capable of resisting stress.21
- Connection and Suspension: Ligaments hold individual bones together at joints, while tendons attach muscles to bone. Internally, organs are often suspended by membranes like the mesentery or embedded in adipose tissue for protection and support.1
- Joint Function: Cartilage covers articular surfaces, providing a firm consistency that facilitates smooth gliding movements, while the synovial membrane lubricates these areas.13