What does "Tendon sheath" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
A tendon sheath is a layer of membrane that covers a tendon. Tendons are the tough fibers that connect our muscles to our bones, allowing us to move. The sheath acts like a protective cover, reducing friction and helping the tendon to move smoothly when the muscle contracts or relaxes. It's a bit like the outer covering on a bicycle brake cable, allowing the inner cable to slide back and forth easily.
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