The Hip Joint, Anterior Thigh and Neurovascular Structures Flashcards
What type of joint is the hip joint?
Synovial ball and socket
Why is the hip joint more stable than the shoulder?
Deeper socket
What is the acetabular labrum and what does it cover?
Fibrocartilaginous membrane
Covers lunate surface of acetabulum
What are the three main ligaments of the hip joint?
Iliofemoral ligament
Ischiofemoral ligament
Pubofemoral ligament
What is the function of the iliofemoral ligament?
To prevent hyperextension of the hip joint
What is the function of the pubofemoral ligament?
To prevent hyperabduction of the hip joint
Identify the structures labelled 1-3
1- Iliofemoral ligament
2- Pubofemoral ligament
3- Ischiofemoral ligament
What movements are permitted at the hip joint?
Flexion/extension Abduction/adduction External (lateral)/internal (medial) rotation Circumdiction
What are the flexors of the hip?
Iliopsoas
Rectus femoris
Sartorius
Pectineus
Identify the structures labelled 1-3 FLEXORS OF HIP
1- Iliacus 2- Psoas major 3- Pectinus
What are the attachments of iliacus and psoas major?
Iliacus arises from the inner pelvic wall Psoas major arises from the posterior abdominal wall Two muscles join to form iliopsoas muscle and share a common tendinous attachment on the femur
What muscle is the chief flexor of the thigh?
Sartorius
Which muscle is the main extensor of the hip?
Gluteus maximus
When is gluteus maximus most active in hip extension?
When standing from sitting and climbing stairs Relatively inactive during normal walking
What are the extensors of the hip?
Gluteus maximus
Hamstrings- semimembranous, semitendinous, biceps femoris
What are the adductor muscles of the hip?
Adductor longus
Adductor brevis
Adductor magnus
Gracilis
Obturator externus
Identify the structures labelled 1-4 ADDUCTORS OF THIGH 1
1- Obturator externus
2- Adductor brevis
3- Adductor longus
4- Adductor magnus
Identify the structures labelled 1-6
1- Femoral nerve 2- Femoral artery 3- Adductor longus 4- Adductor brevis 5- Obturator nerve 6- Gracilis
Which nerve supplies the adductor compartment of the thigh?
The obturator nerve
Where does the obturator nerve exit the pelvis?
Via the obturator canal