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Encyclopedia > Tibia
Bone: Tibia
Plan of ossification of the tibia. From three centers.
Gray's subject #61 256
MeSH Tibia

The tibia is the larger of the two bones in the leg below the knee in vertebrates. Image File history File links 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. ... This article does not cite any references or sources. ... The tibia is a bone in the leg of humans and other vertebrates. ... Grays Anatomy illustration of a human femur. ... Diagram of an insect leg A leg is the part of an animals body that supports the rest of the animal above the ground and is used for locomotion. ... For other uses, see Knee (disambiguation). ...

Contents

In humans

The tibia or shin bone, in human anatomy, is found medial (towards the middle) and anterior (towards the front) to the other such bone, the fibula. It is the second-longest bone in the human body, the largest being the femur. The tibia articulates with the femur and patella superiorly, the fibula laterally and with the ankle inferiorly. List of bones of the human skeleton Human anatomy is primarily the scientific study of the morphology of the adult human body. ... 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. ... The femur or thigh bone is the longest, most voluminous, and strongest bone of the mammalian bodies. ... The femur or thigh bone is the longest, most voluminous, and strongest bone of the mammalian bodies. ... The patella or kneecap is a thick, triangular bone which articulates with the femur and covers and protects the front of the knee joint. ... 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. ... Grays Fig. ...


Gender differences

In the male, its direction is vertical, and parallel with the bone of the opposite side, but in the female it has a slightly oblique direction downward and lateralward, to compensate for the greater obliquity of the femur.


Structure

It is prismoid in form, expanded above, where it enters into the knee-joint, contracted in the lower third, and again enlarged but to a lesser extent below.


The tibia is connected to the fibula by an interosseous membrane, forming a type of joint called a syndesmoses. The Interosseous membrane is a broad and thin plane of fibrous tissue that separates many of the bones of the body. ... Syndesmoses are joints at which two bones are bound together by a ligament only. ...


Blood Supply

The tibia derives its arterial blood supply from two sources:[1]

  1. the nutrient artery (main source)
  2. periosteal vessels derived from the anterior tibial artery

The medullary or nutrient artery, usually accompanied by one or two veins, sends branches upward and downward to the bone marrow, which ramify in the medullary membrane, and give twigs to the adjoining canals. ... Anterior tibial artery and the muscles and bones of the leg - anterior view of right leg. ...

Additional images

See also

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. ... Plan of ossification of the tibia. ... The upper extremity of the tibia (or proximal extremity) is large, and expanded into two eminences, the medial condyle and lateral condyle. ... The body of the tibia has three borders and three surfaces. ... The lower extremity of the tibia, much smaller than the upper extremity of tibia, presents five surfaces; it is prolonged downward on its medial side as a strong process, the medial malleolus. ... Shin splints is a general term used to refer to a painful sensation in the lower legs. ...

External links

  • Tibial fractures

References

  1. ^ NELSON G, KELLY P, PETERSON L, JANES J. "Blood supply of the human tibia". J Bone Joint Surg Am 42-A: 625-36. PMID 13854090. 

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 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 (or Grays Anatomy as it has more commonly become known) is an anatomy textbook widely regarded as a classic work on human anatomy. ...


  Results from FactBites:
 
Tibia - Wikipedia, the free encyclopedia (1179 words)
The Tibia or shin bone, in human anatomy, is the larger of the two bones in the leg below the knee.
The tibia articulates with the femur and patella superiorly, the fibula laterally and with the ankle inferiorly.
The compact wall of the body is thickest at the junction of the middle and lower thirds of the bone.
Tibia - definition of Tibia in Encyclopedia (1221 words)
In human anatomy, the tibia (Shin Bone) is the larger of the two bones in the leg below the knee, found medial and anterior to the fibula.
In the male, its direction is vertical, and parallel with the bone of the opposite side; but in the female it has a slightly oblique direction downward and lateralward, to compensate for the greater obliquity of the femur.
The anterior surface of the lower extremity is smooth and rounded above, and covered by the tendons of the Extensor muscles; its lower margin presents a rough transverse depression for the attachment of the articular capsule of the ankle-joint.
  More results at FactBites »

 
 

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