57:020 Fluid Mechanics Chapter 2 Professor Fred Stern Fall 2013 1 Chapter 2: Pressure and Fluid Statics Pressure For a static fluid, the only stress is the normal stress since by definition a fluid subjected to a shear stress must deform and undergo motion. Normal stresses are referred to as pressure p.
The main symptom of a tendon injury is pain in the affected tendon, which will usually get worse when you move it. Other symptoms can include: 1  stiffness, which is often worse in the morning. 2  weakness in the affected area or being unable to move a joint.  swelling, sometimes with heat or redness.
This can cause wrist pain or numbness in the fingers. Causes. De Quervain's tendinitis is caused when tendons on the thumb side of the wrist are swollen or irritated. The irritation causes the lining (synovium) around the tendon to swell, which changes the shape of the compartment. This makes it difficult for the tendons to move as they should. Tendinitis may be caused by overuse.