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Encyclopedia > Fibula
Bone: Fibula
Bones of lower extremity.
Figure 1 : Lower extremity of right fibula. Medial aspect.
Gray's subject #62 260
MeSH Fibula
For other uses see fibula (disambiguation)

The fibula or calf bone is a bone placed 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. Image File history File links Illu_lower_extremity. ... Image File history File links From Grays Anatomy File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... Fibula or Fibulae (plural) may mean: Fibula, the calf-bone of a mammal. ... Grays Anatomy illustration of a human femur. ... This article is about the vertebrate bone. ... For other uses, see Knee (disambiguation). ...

Contents

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) Microsurgery is a type of surgery where an operation microscope is required in order to perform opératoire precision acts. ... It has been suggested that this article or section be merged with jaw. ... The periosteum is an envelope of fibrous connective tissue that is wrapped around the bone in all places except at joints (which are protected by cartilage). ... For other uses of the word bone, see bone (disambiguation). ...


Ossification

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 is the process of bone formation, in which connective tissues, such as cartilage are turned to bone or bone-like tissue. ... Cartilage is type of dense connective tissue. ...


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. For other uses of the word bone, see bone (disambiguation). ...


See also

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. The articulations between the tibia and fibula are effected by ligaments which connect the extremities and bodies of the bones. ... Grays Anatomy illustration of a human femur. ... In zootomy, several terms are used to describe the location of organs and other structures in the body of bilateral animals. ... The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy after Henry Gray, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


Additional images

External links


  Results from FactBites:
 
eMedicine - Fractures, Tibia and Fibula : Article Excerpt by: Jeffrey G Norvell, MD (358 words)
Fractures of the tibia generally are associated with fibula fracture, because the force is transmitted along the interosseous membrane to the fibula.
The tibia and fibula articulate at the proximal tibia-fibular syndesmosis.
Isolated midshaft or proximal fibula fractures are uncommon.
III. Syndesmology. 7c. Articulations between the Tibia and Fibula. Gray, Henry. 1918. Anatomy of the Human Body. (781 words)
The articulations between the tibia and fibula are effected by ligaments which connect the extremities and bodies of the bones.
347) consists of two or three broad and flat bands, which pass obliquely upward from the front of the head of the fibula to the front of the lateral condyle of the tibia.
—This 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.
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