Infobox Bone
Name = Fibula
Latin =
GraySubject = 62
GrayPage = 260

Caption = Bones of lower extremity.

Caption2 = Figure 1 : Lower extremity of right fibula. Medial aspect.
Origins =
Insertions =
Articulations =
MeshName = Fibula
MeshNumber = A02.835.232.043.650.321
:"For other uses see fibula (disambiguation)"

The fibula or calf bone is a bone located on the lateral side of the tibia, with 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 level of 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.


The bone has the following components:

* Head of fibula
* Body of fibula
* Lateral malleolus
* Interosseous membrane connecting the fibula to the tibia, forming a syndesmoses joint
* The superior tibiofibular articulation is an arthrodial joint between the lateral condyle of the tibia and the head of the fibula.
* The inferior tibiofibular articulation (tibiofibular syndesmosis) is formed by the rough, convex surface of the medial side of the lower end of the fibula, and a rough concave surface on the lateral side of the tibia.

Blood supply

The blood supply is important for planning free tissue transfer because the fibula is commonly used to reconstruct the mandible. The shaft is supplied in its middle third by a large nutrient vessel from the peroneal artery. It is also perfused from its periosteum which receives many small branches from the peroneal artery. The proximal head and the epiphysis are supplied by a branch of the anterior tibial artery. In harvesting the bone the middle third is always taken and the ends preserved (4cm proximally and 6cm distally)


The fibula is ossified from "three" centers, one for the shaft, and one for either end. Ossification begins in the body about the eighth week of fetal life, and extends toward the extremities. At birth the ends are cartilaginous.

Ossification commences in the lower end in the second year, and in the upper about the fourth year. The lower epiphysis, the first to ossify, unites with the body about the twentieth year; the upper epiphysis joins about the twenty-fifth year.

See also

*Bone terminology
*Terms for anatomical location



External links


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Look at other dictionaries:

  • FIBULA — Gr. φίβλη, quod ligat, Isid. aliis a figendo, quasi Figula, περόνη, ἐπιβλὴ. Gloss. Fibula, πόρπη, φιβλίον. Mart. quod Fibras. i. e. extremitates vestium constringat, aut quasi Figula, quia figit seu configit, dicta videtur. Eas non tam in… …   Hofmann J. Lexicon universale

  • fibulă — FIBÚLĂ, fibule, s.f. 1. Agrafă (ornamentală) de metal, întrebuinţată în antichitate pentru a încheia un veşmânt. 2. (anat.) Peroneu. – Din lat. fibula. Trimis de romac, 13.09.2007. Sursa: DEX 98  FÍBULĂ s. peroneu. Trimis de siveco, 05.08.2004.… …   Dicționar Român

  • Fibula — La fibula (anciennement appelée péroné), est un os constituant la partie latérale du squelette de la jambe. Articulé avec le tibia à ses deux extrémités, et avec le talus à son extrémité distale (malléole externe). Chez les oiseaux actuels, la… …   Wikipédia en Français

  • fibula — ● fibula nom féminin (latin fibula, agrafe) Synonyme de péroné. ● fibula (synonymes) nom féminin (latin fibula, agrafe) Synonymes : péroné …   Encyclopédie Universelle

  • fibula — / fibula/ s.f. [dal lat. fibŭla ]. 1. (archeol.) [piccolo congegno di metallo per chiudere cinture, scarpe, ecc.] ▶◀ ‖ fibbia, spilla. 2. (anat.) [osso della gamba parallelo alla tibia] ▶◀ perone …   Enciclopedia Italiana

  • Fibula — (lat.) bezeichnet: in der Anatomie den Wadenbeinknochen des Unterschenkels bei Wirbeltieren, siehe Wadenbein einen Teil des Beines bei Gliederfüßern (Insekten, Spinnentiere, Krebstiere), siehe Fibula (Gliederfüßer) eine altertümliche Heftnadel… …   Deutsch Wikipedia

  • fibula — 1670s, clasp, buckle, brooch; 1706 as smaller bone in the lower leg, from L. fibula clasp, brooch, related to figere to fasten, fix (see FIX (Cf. fix)). Used in reference to the outer leg bone as a loan translation of Gk. perone small bone in the …   Etymology dictionary

  • fíbula — s. f. 1. Alfinete ou fivela para prender o vestuário. 2.  [Anatomia] O mesmo que perônio.   ‣ Etimologia: latim fibula, ae, fivela, broche …   Dicionário da Língua Portuguesa

  • fíbula — (Del lat. fibŭla). 1. f. Especie de hebilla o broche antiguo que se usaba para sujetar las prendas de vestir. 2. Anat. peroné …   Diccionario de la lengua española

  • Fibula — Fib u*la, n.; pl. {Fibul[AE]}. [L., clasp, buckle.] 1. A brooch, clasp, or buckle. [1913 Webster] Mere fibul[ae], without a robe to clasp. Wordsworth. [1913 Webster] 2. (Anat.) The outer and usually the smaller of the two bones of the leg, or… …   The Collaborative International Dictionary of English

  • Fibŭla — (lat.), 1) Schnalle, Heftel, Klammer, Band u. ähnliches; 2) (Anat), das Wadenbein, s.u. Fußknochen; daher Fibularis, was darauf Bezug hat …   Pierer's Universal-Lexikon