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This is the most common situation, in which the extra digit is on the ulnar side of the hand, thus the side of the little finger. This can also be called postaxial polydactyly. It can manifest itself very subtly, for instance only as a nubbin on the ulnar side of the little finger, or very distinctly, as a fully developed finger.
The word "pinkie" is derived from the Dutch word pink, meaning "little finger".. The earliest recorded use of the term "pinkie" is from Scotland in 1808. [1] The term (sometimes spelled "pinky") is common in Scottish English [2] and American English, [3] and is also used extensively in other Commonwealth countries such as New Zealand, Canada, and Australia.
It is an abductor of the little finger [1] at the metacarpophalangeal joint. [6] It is also possible that the muscle contributes to extension of the middle phalanx of the little finger through its connection to finger's extensor mechanism. [5] It plays an important role when the hand is grasping large objects with outspread fingers. [7]
The muscles of hypothenar eminence are from medial to lateral: Opponens digiti minimi; Flexor digiti minimi brevis; Abductor digiti minimi; The intrinsic muscles of hand can be remembered using the mnemonic, "A OF A OF A" for, Abductor pollicis brevis, Opponens pollicis, Flexor pollicis brevis (the three thenar muscles), Adductor pollicis, and the three hypothenar muscles, Opponens digiti ...
For example, humans have a 2-3-3-3-3 formula for the hand, meaning that the thumb has two phalanges, whilst the other fingers each have three. In the distal phalanges of the hand the centres for the bodies appear at the distal extremities of the phalanges, instead of at the middle of the bodies, as in the other phalanges.
Splint for the left little (pinky) finger of a 7-year-old child. If a contracture is less than 30 degrees, it may not interfere with normal functioning. [7] The common treatment is splinting and occupational therapy. [12] Surgery is the last option for most cases as the result may not be satisfactory. [13]
Clinodactyly is a medical term describing the curvature of a digit (a finger or toe) in the plane of the palm, most commonly the fifth finger (the "little finger") towards the adjacent fourth finger (the "ring finger").
fingers: Flexor digitorum superficialis and profundus, lumbricals, and interossei, assisted in the case of the little finger by the flexor digiti minimi brevis: extensor digitorum communis, extensor indicis proprius, and extensor digiti minimi muscle: thumb: flexor pollicis longus and brevis: extensor pollicis longus and brevis