Wrist Extensor Zones EXPLAINED

The video tutorial explains the extensor tendon zones, focusing on the muscles in the posterior forearm whose tendons extend across the wrist into the hand. It covers the anatomy of the carpal tunnel, highlighting the differences between the flexor and extensor retinacula. The tutorial details the six extensor tendon zones, describing the tendons and their functions in each zone. It concludes with the functional importance of the extensor retinaculum in preventing bowstringing during wrist extension.

How does the orientation of the extensor pollicis longus change as it crosses the wrist joint?

What tendons are found in the fourth extensor tendon zone?

Discuss the role of the extensor retinaculum in preventing bowstringing of the tendons.