distal phalanx

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distal phalanx

any one of the small distal bones in the third row of phalanges of the hand or the foot (second phalanx in the thumb and great toe). Each one at the end of the finger has a convex dorsal surface and a flat palmar surface, with a rough elevation at the end of the palmar surface that supports a fingernail and its sensitive pulp. The distal phalanx of each of the toes is smaller and more flattened than that of a finger; it also has a rough elevation to support the toenail and its pulp. Also called ungual phalanx.

distal phalanx

The phalanx most remote from the metacarpus or metatarsus. Synonym: terminal phalanx; ungual phalanx
See also: phalanx

Distal Phalanx

The outermost bone of any finger or toe.
Mentioned in: Mallet Finger


remote; farther from any point of reference. See also direction.

distal convoluted tubule
the part of the renal tubular system interposed between the nephron loop and the arched collecting tubule. See also convoluted tubules.
distal interphalangeal joints
see Table 11.
distal phalanx
third phalanx.
distal sesamoid
navicular bone in the horse.
distal tarsal bones
the tarsal bones adjacent to the metatarsals.
References in periodicals archive ?
This fracture pattern also mimics Saymours' fracture, but it is caused by direct trauma to the distal phalanges physis, resulting in an open fracture.
The epiphysis of the distal phalanges begins to ossify at 12 to 36 months of age and closes at approximately 13 to 16 years (Hensinger, 1986).
flexor digitorum longus inserts mainly on the ungular phalanx and is important in flexing distal phalanges.
Radiographs of the hands and wrists revealed thickened cortical bone at the distal ends of the radius and ulna, sub-periosteal reaction along the metacarpal shafts and distal ends of the radius and ulna, and tufting at the distal phalanges (Fig.
Examples of these intra-articular fractures would include the mallet fracture injuries of the terminal phalanx, as well as various condylar fractures of the proximal middle and distal phalanges.
Dorsally, the extensor hallucis longus (EHL) inserts onto the distal phalanges and the extensor hallucis brevis (EHB) onto the proximal phalanges.
Hallux valgus interphalangeus is the angle between the lines bisecting the proximal and distal phalanges of the metatarsal.
The term "drumstick terminal phalanx" (Figure 10) refers to rounding and broadening of the tufts of the distal phalanges of patients with Turner syndrome, (10) figuratively similar to the widening of the meaty end of a chicken or turkey drumstick.
This is usually bilateral, and occasionally the distal phalanges are fused.
It was also noted that the distal phalanges of the patient's feet were missing, which the patient reported was secondary to "frostbite" sustained during a mountain-climbing accident in 1999.
In addition, 1% of epileptic women treated with valproic acid during pregnancy will have a baby with neural tube defects, and 5%-10% of fetuses exposed to hydantoin will have fetal hydantoin syndrome, which includes microcephaly growth deficiency developmental delays and mental retardation, dysmorphic craniofacial features, and hypoplasia of nails and distal phalanges.
Although only the length of the proximal and distal phalanges of the right thumb (Digitus pirimus) was statistically different, in the left thumb, both surface area and length had statistically important ratio-related-differences.

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