Femur

femorathigh bonefemoralthighbonethigh bonesfemursthighfemur boneleg bonesproximal femur
The femur (, pl. femurs or femora ), or thigh bone, is the proximal bone of the hindlimb in tetrapod vertebrates and of the human thigh.wikipedia
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Bone

cortical bonebone tissuecancellous bone
The femur (, pl. femurs or femora ), or thigh bone, is the proximal bone of the hindlimb in tetrapod vertebrates and of the human thigh.
The largest bone in the body is the femur or thigh-bone, and the smallest is the stapes in the middle ear.

Lower extremity of femur

distal part of the femurlower extremity of the femurdistal condyles
The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia and kneecap forming the knee joint.
The lower extremity of femur (or distal extremity) is the lower end of the thigh bone in human and other animals, closer to the knee.

Thigh

thighsmedial thighmid-thighs
The femur (, pl. femurs or femora ), or thigh bone, is the proximal bone of the hindlimb in tetrapod vertebrates and of the human thigh.
The single bone in the thigh is called the femur.

Hip bone

pelvic boneinnominate bonepelvic bones
The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia and kneecap forming the knee joint.
Each hip bone is connected to the corresponding femur (thigh bone) (forming the primary connection between the bones of the lower limb and the axial skeleton) through the large ball and socket joint of the hip.

Tibia

shinshin boneshinbone
The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia and kneecap forming the knee joint.
It is the second largest bone in the human body next to the femur.

Upper extremity of femur

femoral neckupperupper extremity of the femur
The upper or proximal extremity (close to the torso) contains the head, neck, the two trochanters and adjacent structures.

Femoral-tibial angle

The angle of convergence of the femora is a major factor in determining the femoral-tibial angle.
The femoral-tibial angle is the angle between the femur and tibia.

Long bone

long boneslong
The femur is categorised as a long bone and comprises a diaphysis (shaft or body) and two epiphyses (extremities) that articulate with adjacent bones in the hip and knee.
Long bones, especially the femur and tibia, are subjected to most of the load during daily activities and they are crucial for skeletal mobility.

Genu varum

bow-leggedbow-leggednessbowlegged
The opposite extreme is genu varum (bow-leggedness).
Usually medial angulation of both lower limb bones (femur and tibia) is involved.

Trochanter

trochantericsub-trochantericsupratrochanteric processes
The upper or proximal extremity (close to the torso) contains the head, neck, the two trochanters and adjacent structures. Here the two trochanters, greater and lesser trochanter, are found.
A trochanter is tubercle of the femur near its joint with the hip bone.

Coxa vara

An abnormal increase in the angle is known as coxa valga and an abnormal reduction is called coxa vara.
Coxa vara is a deformity of the hip, whereby the angle between the head and the shaft of the femur is reduced to less than 120 degrees.

Greater trochanter

greatertrochantergreat trochanter
Here the two trochanters, greater and lesser trochanter, are found.
The greater trochanter (great trochanter) of the femur is a large, irregular, quadrilateral eminence and a part of the skeletal system.

Lesser trochanter

lesserlesser trochanter of the femur
Here the two trochanters, greater and lesser trochanter, are found.
The lesser trochanter (small trochanter) of the femur is a conical eminence, which varies in size in different subjects.

Intertrochanteric line

trochanteric
The two trochanters are joined by the intertrochanteric crest on the back side and by the intertrochanteric line on the front.
The intertrochanteric line (or spiral line of the femur ) is a line located on the anterior side of the proximal end of the femur.

Third trochanter

The third trochanter is a bony projection occasionally present on the proximal femur near the superior border of the gluteal tuberosity.
In human anatomy, the third trochanter is a bony projection occasionally present on the proximal femur near the superior border of the gluteal tuberosity.

Linea aspera

bony ridge
It is slightly arched, so as to be convex in front, and concave behind, where it is strengthened by a prominent longitudinal ridge, the linea aspera which diverges proximally and distal as the medial and lateral ridge.
The linea aspera (rough line) is a ridge of roughened surface on the posterior surface of the shaft of the femur, to which are attached muscles and intermuscular septum.

Quadrate tubercle

About the junction of the upper one-third and lower two-thirds on the intertrochanteric crest is the quadrate tubercle located.
The quadrate tubercle is a small tubercle found upon the upper part of the femur, that serves as a point of insertion of the quadratus femoris along with the intertrochanteric crest and the linea quadrata.

Patella

kneecapknee capPatela
The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia and kneecap forming the knee joint.
The patella, also known as the kneecap, is a flat, circular-triangular bone which articulates with the femur (thigh bone) and covers and protects the anterior articular surface of the knee joint.

Muscles of the hip

hip musculaturehip muscles
Both the head and neck of the femur is vastly embedded in the hip musculature and can not be directly palpated.
The gluteus maximus, which forms most of the muscle of the buttocks, originates primarily on the ilium and sacrum and inserts on the gluteal tuberosity of the femur as well as the iliotibial tract, a tract of strong fibrous tissue that runs along the lateral thigh to the tibia and fibula.

Epiphysis

epiphysessubchondral boneepiphyseal
The femur is categorised as a long bone and comprises a diaphysis (shaft or body) and two epiphyses (extremities) that articulate with adjacent bones in the hip and knee.

Knee

knee injuryknee jointknees
The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia and kneecap forming the knee joint. The posterior cruciate ligament of the knee joint is attached to the lower and front part of the medial wall of the fossa and the anterior cruciate ligament to an impression on the upper and back part of its lateral wall.
In humans and other primates, the knee joins the thigh with the leg and consists of two joints: one between the femur and tibia (tibiofemoral joint), and one between the femur and patella (patellofemoral joint).

Tetrapod

tetrapodsTetrapodaland vertebrates
The femur (, pl. femurs or femora ), or thigh bone, is the proximal bone of the hindlimb in tetrapod vertebrates and of the human thigh.
The paired fins had bones distinctly homologous to the humerus, ulna, and radius in the fore-fins and to the femur, tibia, and fibula in the pelvic fins.

Genu valgum

knock-kneedknock kneesgenu valgum'' (knock knee)
In the condition genu valgum (knock knee) the femurs converge so much that the knees touch one another.
Available surgical procedures include adjustments to the lower femur and total knee replacement (TKR).

Medial epicondyle of the femur

medial epicondylemedialmedial femoral epicondyle
The medial epicondyle is a large convex eminence to which the tibial collateral ligament of the knee-joint is attached.
The medial epicondyle of the femur is a bony protrusion located on the medial side of the bone's distal end.

Posterior cruciate ligament

PCLposteriorCaudal cruciate ligament
The posterior cruciate ligament of the knee joint is attached to the lower and front part of the medial wall of the fossa and the anterior cruciate ligament to an impression on the upper and back part of its lateral wall.
It connects the posterior intercondylar area of the tibia to the medial condyle of the femur.