Metacarpal Bone First

The first metacarpal bone (lat. os metacarpi primum) is one of the five bones of the metacarpal of the hand.

The first metacarpal bone is short and thick. Its base articulates with the wrist, and its head articulates with the main phalanx of the thumb.

Features of the first metacarpal bone:

1. The proximal end is wide, convex, and articulates with the scaphoid bone.

2. The body of the bone is prismatic in shape.

3. The distal end is capitate, articulates with the main phalanx of the thumb.

4. On the back side there is a tubercle to which the extensors of the thumb are attached.

5. On the palmar side there is a groove along which the tendons of the flexor muscles of the thumb slide.

The first metacarpal bone, like the other metacarpal bones, plays an important role in the formation of the hand and ensuring the mobility of the fingers.

The quintal bone can be found in five countries.

No, this joke has nothing to do with politics, I was too bad at formulating it. When getting acquainted with the English language, the term for the first bone of the finger seemed to me like an asshole for this 5-ke. While translating my “original” expression, I realized that this is a strange word, the meaning of which cannot be explained to Russian people. Judge for yourself, if the first question is about which bone we twirl in our hands in the evening, then why is it number five? Let's figure it out and laugh together. Let's brainstorm and fix everything!