![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/1/14/Fibula_-_anterior_view.png/640px-Fibula_-_anterior_view.png&w=640&q=50)
Fibula
Leg bone in vertebrates / From Wikipedia, the free encyclopedia
For the ancient jewelry type, see Fibula (brooch).
The fibula (pl.: fibulae or fibulas) or calf bone is a leg bone on the lateral side of the tibia, to which it is connected above and below. It is the smaller of the two bones and, in proportion to its length, the most slender of all the long bones. Its upper extremity is small, placed toward the back of the head of the tibia, below the knee joint and excluded from the formation of this joint. Its lower extremity inclines a little forward, so as to be on a plane anterior to that of the upper end; it projects below the tibia and forms the lateral part of the ankle joint.
Quick Facts Details, Pronunciation ...
Fibula | |
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![]() Position of fibula in human body (shown in red) | |
![]() Cross section of human lower leg, showing fibula in centre (latin terminology) | |
Details | |
Pronunciation | /ˈfɪbjʊlə/[1][2] |
Articulations | Superior and inferior tibiofibular joint Ankle |
Identifiers | |
Latin | (os) fibula |
MeSH | D005360 |
TA98 | A02.5.07.001 |
TA2 | 1427 |
FMA | 24479 |
Anatomical terms of bone |
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![3D Medical Animation still shot of Fibula structure](http://upload.wikimedia.org/wikipedia/commons/thumb/0/03/3D_Medical_Animation_Fibula_Structure.jpg/640px-3D_Medical_Animation_Fibula_Structure.jpg)