Upper extremity of femur
Encyclopedia
The upper extremity of femur
contains the following structures:
Femur
The femur , or thigh bone, is the most proximal bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles such as lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in...
contains the following structures:
- Femur headFemur headThe femur head is the highest part of the thigh bone . It is supported by the neck of the femur.The head is globular and forms rather more than a hemisphere, is directed upward, medialward, and a little forward, the greater part of its convexity being above and in front.Its surface is smooth,...
- Femur neckFemur neckThe femur neck or neck of the femur is a flattened pyramidal process of bone, connecting the femoral head with the femoral shaft, and forming with the latter a wide angle opening medialward.- Angle of inclination :...
- Greater trochanterGreater trochanterThe greater trochanter of the femur is a large, irregular, quadrilateral eminence and a part of the skeletal system.It is directed a little lateralward and backward, and, in the adult, is about 1 cm lower than the head...
- Lesser trochanterLesser trochanterThe lesser trochanter of the femur is a conical eminence, which varies in size in different subjects-Anatomy:It projects from the lower and back part of the base of the femur neck.From its apex three well-marked borders extend:...
- Tubercle of the femurTubercle of the femurThe quadrate tubercle is a small tubercle found upon the upper part of the femur.It is the point of insertion of the quadratus femoris....
- Intertrochanteric line
- Intertrochanteric crestIntertrochanteric crestThe intertrochanteric crest is a bony ridge located on the posterior side of the head of the femur, stretching obliquely downward and medially from the summit of the greater trochanter to the lesser trochanter....
- Linea quadrataLinea quadrataA slight ridge is sometimes seen commencing about the middle of the intertrochanteric crest, and reaching vertically downward for about 5 cm. along the back part of the body: it is called the linea quadrata , and gives attachment to the Quadratus femoris and a few fibers of the Adductor magnus....