Knuckle
Knuckle
Knuckle (/ˈnʌkəl/) is a term used in anatomy to describe the joints of the fingers, which are formed by the connection of the metacarpal bones in the hand and the proximal phalanges of the fingers.
Etymology
The term "knuckle" is derived from the Middle English word "knokel", which means the joint of a finger or toe.
Anatomy
A knuckle is a joint made up of several parts, including the metacarpal bones, the proximal phalanges, and the connective tissues that hold these bones together. The knuckles are covered by skin and are often prominent when the hand is clenched, such as when making a fist.
Related Terms
- Metacarpal bones: The five bones in the hand that connect the wrist to the fingers.
- Proximal phalanges: The bones in the fingers and toes closest to the hand or foot.
- Joint: The location at which two or more bones make contact.
- Finger: The appendages that are located at the end of the hand.
- Hand: The end part of a person's arm beyond the wrist, including the palm, fingers, and thumb.
See Also
External links
- Medical encyclopedia article on Knuckle
- Wikipedia's article - Knuckle
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