proximal phalanx of the little finger (left) (Phalanx proximalis quinta)
Educational content only — not medical advice.
Anatomy
the longest phalanx of the little finger: its concave base receives the metacarpal head, and its pulley-shaped head articulates with the middle phalanx. This phalanx belongs to the little finger of the left hand.
Clinical notes
The commonest of hand phalanx fractures; rotational malunion disables the fist, and finger rotation must be tested with the fingers flexed.
Related structures
Educational references
FAQ
What is the role of the proximal phalanx of the little finger (left)?
the longest phalanx of the little finger: its concave base receives the metacarpal head, and its pulley-shaped head articulates with the middle phalanx. This phalanx belongs to the little finger of the left hand.
Why is the proximal phalanx of the little finger (left) clinically important?
The commonest of hand phalanx fractures; rotational malunion disables the fist, and finger rotation must be tested with the fingers flexed.
Source & license
Derived from Z-Anatomy (Gauthier Kervyn et al.), CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/); upstream geometry from BodyParts3D, © The Database Center for Life Science. license details