Middle phalanx of fourth toe at a glance
- What it is
- The middle phalanx of the fourth toe (fourth digit of the foot).
- Location
- Lies between the proximal and distal phalanges at the proximal and distal interphalangeal joints.
- Function
- Allows toe flexion; flexor digitorum brevis inserts on its sides.
- Body system
- Skeletal · paired (left and right)
- FMA ID
- FMA32647 (Foundational Model of Anatomy)
Key facts
- The middle slip of the extensor expansion inserts on its dorsal base, opposing flexor digitorum brevis.
- Its plantar skin is split: the medial half is supplied by the medial plantar nerve and the lateral half by the lateral plantar nerve.
Structures next to the middle phalanx of fourth toe
The nearest named structures in the 3D model, measured from the centre of each part:
- Distal phalanx of fourth toe · skeletal
- Distal phalanx of little toe · skeletal
- Middle phalanx of third toe · skeletal
- Middle phalanx of little toe · skeletal
- Proximal phalanx of fourth toe · skeletal
- Proximal phalanx of third toe · skeletal
- Distal phalanx of third toe · skeletal
- Proximal phalanx of little toe · skeletal
- Middle phalanx of second toe · skeletal
- Proximal phalanx of second toe · skeletal
References
- Foundational Model of Anatomy: Middle phalanx of fourth toe (FMA32647). EMBL-EBI Ontology Lookup Service.
- OpenStax. Anatomy and Physiology 2e, §7.1 Divisions of the Skeletal System. Rice University, 2022.
- Mitsuhashi N. et al. (2009). BodyParts3D: 3D structure database for anatomical concepts. Nucleic Acids Research 37, D782–D785. Data © The Database Center for Life Science, CC BY 4.0.
Related anatomy
Explore the whole body in the interactive 3D human anatomy model, or browse the A–Z list of human structures.