A tendon is a type of body tissue that connects muscle to bone. If a tendon becomes inflamed — painful and swollen — the condition is called tendonitis. In your hands, there are so-called extensor ...

The extensor carpi radialis longus (ECRL) is a muscle in your forearm that works in conjunction with the other muscles and tendons in your arm to help move your wrist and hand. It is in the same ...

De Quervain tenosynovitis is pain and swelling in the tendons around your thumb. Specifically, it affects the tendons of two muscles called abductor pollicis longus and extensor pollicis brevis. De ...

The upper two-thirds to three-fourths of the muscle extends over the fibula and the muscle passes below the cruciate crural and transverse ligaments. After passing these ligaments, the muscle divides ...