Anatomy of Hip and Knee Flashcards
What are the features of the hip joint?
Strong
Stable
Multi-axial
Ball and socket type joint
What forms the ball and socket of the hip joint?
Head of the femur is the ball
Socket is the acetabulum
What is the acetabular cavity mainly formed by?
The ischium
What is the depth of the acetabulum increased by?
The fibrocartilaginous acetabular labrum and the transverse acetabular ligament
What is the head of the femur covered with?
Articular cartilage
What are the joint capsule ligaments of the hip?
Iliofemoral ligament
Pubofemoral ligament
Ischiofemoral ligament
What is the function of the iliofemoral ligament?
Prevents the hyperextension of the hip joint
What is the function of the pubofemoral ligament?
Prevents over-abduction of the hip joint
What are the flexors of the hip?
Iliopsoas - chief flexor of the hip joint Sartorius Tensor fasciae latae Rectus femoris Pectineus Adductor longus, brevis and Magnus Gracillis
What are the extensors of the hip?
Gluteus maximus
Hamstrings
Adductor magnus
What are the hamstring muscles?
Semitendinosus
Semimembranosus
Biceps femoris
What are the adductors of the hip?
Pectineus Adductor longus Adductor brevis Adductor magnus Obturator externus Gracillis
What are the abductors and medial rotators of the hip?
Gluteus medius
Gluteus minimus
Tensor fasciae latae
What are the lateral rotators of the hip?
Obturator internus and externus Piriformis Gluteus maximus Gemelli Quadratus femoris
What is the blood supply to the hip?
Medial and lateral circumflex arteries
Branch of obturator artery - artery to head of the femur