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Proximal Phalanx of Second Toe
Skeletal System

Proximal Phalanx of Second Toe

Phalanx proximalis digiti secundi pedis

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Quick Facts

Location: Foot.

Bone Type: Long bone.

Key Features: Head, body, base, and proximal and distal articular facets.

Articulates With: Second metatarsal bone, middle phalanx of second toe.

Arterial Supply: Dorsal digital arteries of foot.

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Key Features & Anatomical Relations

The proximal phalanx of second toe is one of the fourteen phalangeal bones of the foot. It’s classified as a long bone and includes the following bony features:

- parts: head, body, and base;

- landmarks: proximal and distal articular facets.

More information regarding these bony features can be found in the Parts and Landmarks tabs for this bone.

The proximal phalanx of second toe is located:

- distal to the second metatarsal bone;

- proximal to the middle phalanx;

It articulates with the:

- middle phalanx at the proximal interphalangeal joint;

- metatarsal bone at the metatarsophalangeal joint.

Ossification

Ossification of the proximal phalanx occurs at two ossification centers, these are found in the:

- body, which appears in utero during the third to fourth months;

- base, which appears within the second to eighth years.

These ossification centers fuse with each other by the 18th year (Standring, 2016).

Surface Anatomy

The head, body, and base of the proximal phalanx can be easily palpated.

List of Clinical Correlates

- Fracture - Brachyphalangia - Symphalangia

References

Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series 41st edn.: Elsevier Limited.

Learn more about this topic from other Elsevier products

Proximal Phalanx

ScienceDirect image

Based on the second proximal phalanx, it was possible to make a further comparison between the antemortem radiograph and the postmortem material, specifically an X-ray and a photograph of the bone.

Explore on ScienceDirect(opens in new tab/window)

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