Lecture 11: Hip Joint Flashcards
Compare/contrast the hip joint with the glenohumoral joint
Both are ball-and-socket joints, but the hip joint is more stable
The articulation of the hip joint is covered with what type of cartilage?
Hyaline
The head of the femur articulates in what cup-shaped structure of the hip joint?
Acetabulum
What is the articular surface of the acetabulum?
Acetabular notch
What part of the acetabulum is filled with fat?
Acetabular fossa
What part of the hip joint articulation accomodates more than half the head of the femur?
Fibrocartilaginous labrum (deepens the joint socket by 10%)
What component of the hip joint articulation is attached to the bony brim of the acetabulum and the neck of the femur?
Joint capsule
Anteriorly, the hip joint capsule is attached to the base of the entire neck of the ______
Femur
Posteriorly, the hip joint capsule has a line of attachment across the ______ neck of the femur
Middle
The synovial membrane of the hip joint covers:
The ___________ neck of femur
_____ side of the capsule
Labrum
______ of head of femur
Fat pad of ________ fossa
Intracapsular
Inner
Ligament
Acetabular
What are the 3 bones that make up os coxae?
Ilium
Ischium
Pubis
Flexion of the hip is very extensive, but limited by overstretched ________ muscles in extension
Hamstring
What are the 4 hip flexor muscles?
Iliopsoas m.
Rectus femoris m.
Sartorius m.
Tensor fascia lata m.
What are the 2 hip extensor muscles?
Gluteus maximus m.
Hamstring m.
What are the 3 hip abductors?
Gluteus medius m.
Gluteus minimis m.
Tensor fascia lata m.
What are the 5 hip adductor muscles?
Adductor longus Adductor brevis Adductor magnus Pectineus Gracilis
What are the medial rotators of the hip?
Tensor fascia lata Gluteus minimis Gluteus medius (anterior fibers) Pectineus Adductor longus Adductor brevis Adductor magnus
What are the lateral rotators of the hip?
Obturator internus Obturator externus Gemelli (sup/inf) Quadratus femoris Piriformis Gluteus maximus Sartorius
What are the 2 internal ligaments of the hip joint?
Transverse acetabular ligament
Ligament of head of femur
Which internal ligament of the hip spans the acetabular notch?
Transverse acetabular ligament
Which internal ligament of the hip joint contains an artery to the head of the femur and is covered by synovial membrane?
Ligament of head of femur
What are the external ligaments of the hip joint?
Iliofemoral ligament
Ischiofemoral ligament
Pubofemoral ligament
What is the most important of the femoral ligaments?
Iliofemoral ligament - it is one of the strongest ligaments in the body
It screws the femoral head into the acetabulum when standing, and prevents hyperextension
The iliofemoral ligament is located _______ and ________
Anterior/posterior vs. superior/inferior
Anteriorly; superiorly
Which external ligament of the hip joint is located anteriorly and inferiorly and blends with the medial iliofemoral ligament?
Pubofemoral ligament
What is the primary function of the pubofemoral ligament?
Tightens during extension and abduction of the thigh, prevents overabduction
What external ligament of the hip joint is located posteriorly and spirals superolaterally to the femoral neck?
Ischiofemoral ligament
What nerves provide sensation in the hip joint?
Sensory branches of:
Gluteal n.
Obturator n.
Femoral n.
What group of blood vessels provides the arterial supply to the hip joint?
Cruciate anastomosis
What arteries are included in the cruciate anastomosis?
Medial femoral circumflex a. Lateral femoral circumflex a. Inferior gluteal a. First perforating artery of profunda femoris a. Obturator a.
