The quadrate tubercle is a small tubercle found upon the upper part of the femur. It serves as a point of insertion of the quadratus femoris muscle, along with the intertrochanteric crest and the linea quadrata.

Quick Facts Details, Identifiers ...
Quadrate tubercle
Thumb
Right femur. Posterior surface. (Quadratus femoris labeled.)
Thumb
Right femur. Posterior surface. (Quadratus femoris labeled at top center.)
Details
Identifiers
Latintuberculum quadratum
TA98A02.5.04.011
TA21370
FMA43709
Anatomical terms of bone
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Structure

The quadrate tubercle is located about the junction of the upper one-third and lower two-thirds, on the intertrochanteric crest. In a small anatomical study, it was shown that the epiphysial line passes directly through the quadrate tubercle.[1] The quadrate tubercle is the site of insertion of the quadratus femoris muscle.[2]

Variation

The size of the quadrate tubercle varies. It is not always located on the intertrochanteric crest. Adjacent areas can also be part of the quadrate tubercle, such as the posterior surface of the greater trochanter or the neck of the femur.

Additional images

References

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