The thumb, and the rest of the fingers, are appendages or digits of the hand. While the thumb is distinctly different from the other four fingers, many medical professionals consider it … See more

As with the rest of the hand, the thumb consists of many different structures that allow for movement and dexterity.
Each finger has three bones, or phalanges, except for t… See more

The thumb’s primary function is to either work with or against the other fingers to manipulate objects and perform actions such as pinching or grasping.
With the re… See more

Arthritis
Thumb arthritis, also called basal thumb arthritis, is the second most common arthritis in the hand. It affects the CMC joint, the unique … See more