Hip Joint Flashcards
What is the hip joint?
A ball and socket, multiaxial, synovial joint.
What articulates to form the hip joint? (Articular surfaces)
Acetabulum and Head of Femur
Hip joint location
Anterior-lateral to gluteal region
Inferior to iliac crest
Superior to greater trochanter of femur
What is the acetabulum?
It is the cup-shaped socket/depression on the inferio-lateral aspect of the pelvis, articulating with the femur head.
Hip joint function
Stability and weight-bearing
Acetabular labrum
A fibrocartilaginous collar that deepens the acetabular cavity
The lunate surface of the acetabulum of the pelvis and the femur head are covered with hyaline cartilage except at…
… the fovea
Function of hyaline cartilage at lunate surface of acetabulum and head of femur
Makes the surface slippery for easy movement
Both the acetabulum and head of femur articular cartilage are thicker at…
…the places of weight bearing.
The non-articular acetabular fossa is covered by…
… loose connective tissue
What bridges the acetabular notch?
Transverse Acetabular Ligament
Functions of the ligaments of the hip joint
To increase stability
Ligaments of the hip joint can be divided into…
Two groups – intracapsular and extracapsular
Intracapsular ligament of the hip joint
The only intracapsular ligament is the ligament of head of femur. It is a relatively small structure, which runs from the acetabular fossa to the fovea of the femur.
The ligament of the head of the femur encloses an artery. What is it?
It encloses a branch of the obturator artery (artery to head of femur), a minor source of arterial supply to the hip joint.