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Neck of the femur

Other Terms: Femoral neck, Collum femoris, Ansatz des Schenkelbeins

Description

The neck is the cantilevered extension of the femoral shaft capped by the femoral head. It is wider at its base and projects anterior to the plane of the shaft. It is approximately 5 cm in length and forms an angle with the shaft of about 125 degrees. Its compact surface bone contains many nutrient foramina, with the compact bone being thickest on the inferior surface. The entire anterior surface of the neck and the proximal half of the posterior surface is within the capsular ligament.

Etymology

The term neck refers to a narrow region of bone that supports a larger bony projection. The Latin term for neck is collum.

Latin

Collum femoris

German

Ansatz des Schenkelbeins

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