Bones and ligs Flashcards
6 Classifications of
Diarthrotic Joints
- Hinge - uni-axial
- Pivot - uni-axial
- Saddle - bi-axial
- Ellipsoidal/Condyloid - bi-axial
- Gliding - multi-axial
- Ball-and-Socket - multi-axial
Articulation between: head of
femur and acetabulum of
innominate
Hip joint
Hip joint structure and function
Structural classification - synovial
Functional classification -
diarthrosis; ball-and-socket
- small, round area of
cancellous bone tissue - on head of femur
Fovea
The amount of bone-on-bone
surface contact
Increased congruency = increased
joint stability
Joint Congruency
made of dense,
irregular connective tissue
Joint capsule:
made from dense,
regular connective tissue
Ligaments:
Fibrocartilaginous ring around the
perimeter of the acetabulum
Deepens socket and increases joint
congruency
Acetabular labrum
Iliofemoral Ligament
Ischiofemoral Ligaments
Pubofemoral Ligament
Extracapsular Ligaments
Ligamentum teres
Transverse Acetabular Ligament
Intracapsular Ligaments
Strongest ligament of hip joint
Iliofemoral Ligament
Attaches from ilium, below AIIS, to
anterior femoral neck
Iliofemoral Ligament
restricts excessive hip
extension and lateral rotation
Provides anterior support during stance
Iliofemoral Ligament
Weakest ligament of the hip
Ischiofemoral Ligaments
Attaches from ischium, lateral to
ischial tuberosity, to superior aspect
of femoral neck
Ischiofemoral Ligaments
restricts excessive
hip extension and medial rotation
Ischiofemoral Ligaments
Attaches from body of pubis to
medial neck of femur
- restricts excessive
hip extension and abduction
Pubofemoral Ligament
Round, tube-like
Functions as a conduit for an artery
Attaches from fovea to acetabulum
Ligamentum teres
Fills in acetabular notch
Functions to increase joint
congruency
Transverse Acetabular Ligament
