What is aponeurosis?
An aponeurosis is a flat sheet of connective tissue in your body that’s important for movement and posture. Aponeuroses (plural) are similar to your tendons, but they have a slightly different role. They cover your muscles and act as insertion points for your muscle fibers to connect your muscles to your bones and cartilage.
Function
How is an aponeurosis functionally similar to a tendon?
The aponeurosis function is similar to a tendon. They both attach your muscles to your bones. When you move one of your muscles by flexing or extending it, an aponeurosis functions as a spring to endure the tension and extra pressure. It absorbs energy when your muscles move.
In contrast, your tendons stretch and contract during those muscle movements. When you contract a muscle, your tendon moves a bone. Tendons allow your body to move and give you flexibility. Aponeuroses give your body strength and stability.
In addition, aponeuroses can act like another type of connective tissue called fascia. Fascia is fibrous tissue that wraps around and supports your muscles, organs and bones.
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