An MP joint, or metacarpophalangeal joint, is the joint where the bones of your fingers (phalanges) meet the bones of your hand (metacarpals). This joint is commonly referred to as a knuckle.
Here's a more detailed explanation:
-
Location: MP joints are located at the base of each finger, connecting the metacarpal bones in your hand to the phalangeal bones in your fingers.
-
Function: These joints are crucial for hand function, allowing for a wide range of movements, including:
- Bending (flexion)
- Straightening (extension)
- Spreading the fingers apart (abduction)
- Bringing the fingers together (adduction)
-
Importance: MP joints play a vital role in everyday activities like:
- Pinching
- Gripping
- Making a fist
- Performing fine motor tasks
In essence, the MP joints are essential for the dexterity and functionality of the hand.
