🦴 Fibula

Brian Lee
Aug 25, 2025
Review Pending
Table of Contents

Summary

The fibula is the slender lateral bone of the leg that runs parallel to the 🦴 tibia. It bears little weight but provides surfaces for muscle attachment and forms the outer part of the ankle joint.

Illustrations

Illustration of the human skeleton with fibulas (or calf bones)
      highlighted in red.
Anatomography, CC BY-SA 2.1 JP, via Wikimedia Commons
Braus 1921 293
Braus, Hermann, Public domain, via Wikimedia Commons

Bony Landmarks

Rounded proximal end articulating with the 🦴 tibia.

Lateral malleolus

Distal projection forming the outer ankle and attachment point for the fibular collateral ligament.

Neck

Narrow region just distal to the head.

Shaft

Long, thin body of the bone.

Muscle Origins

Muscle Insertions

Head of fibula

References