Which is the first and second joint of the finger?

In clinical practice, 1 section, section 2 and section 3 do not mention fingers. There is no uniform regulation, so it is not standardized.

Clinically and anatomically, the standard views are proximal segment, middle segment and distal segment, that is, the segment near the heart is proximal segment, and the segment far from the end is called distal segment or distal segment.

*** 14 phalanx, two thumbs, and three other fingers. From proximal to distal, there are proximal phalanges, middle phalanges and distal phalanges.

Extended data

Normal x-ray anatomy of phalanx;

Each hand has five metacarpals, all of which belong to short tubular bones. On the anterograde film, there is obviously a bone marrow cavity in the metacarpal cortex, and the cortex at both ends is very thin, and the proximal end of each metacarpal bone is square, forming a carpometacarpal joint between the metacarpal base and the carpal bone.

The distal end is spherical, and metacarpal and phalangeal base form metacarpophalangeal joint. Each hand has 14 phalanges, including 2 thumbs and 3 other fingers, all of which belong to short tubular bones. On the X-ray film, the proximal phalanx is wide and sparse, the distal phalanx (proximal phalanx and middle phalanx) is a pulley-shaped head, and the distal phalanx is rod-shaped, which is called nail rotor.

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