Hip flexor pain is commonly caused by sudden movements, stiff muscles, or trauma. Learn more about the symptoms and how it's ...

Flexor pollicis longus allows you to flex your thumb. Other muscles in your forearm that allow you to flex your fingers and wrist may also be involved.

The contents of the carpal tunnel consist of the median nerve and nine tendons (the tendon of the flexor pollicis longus, the four tendons of the flexor digitorum profundus, ...