Lower Limb Joints Flashcards
What are ball and socket joints
one bone has a smooth hemispherical head that fits into a cuplike socket on the other
- hip and shoulder joints
What are condylar (ellipsoid) joints
exhibit an oval convex surface on one bone that fits into a complementary - shaped depression on the other
- radiocarpal joint at the wrist and MCP joints
What are saddle joints
both bones have saddle shaped surface - concave in one direction and convex in the other -trapeziometacarpal joint
What are plane joints
bone surfaces are flat or relatively concave and convex, bones slide over each other but have limited movement
- carpal and tarsal joints
What are hinge joints
Monaxial joints moving freely in one direction with very little movement in any of the others
- elbow, knee joints
What are pivot joints
Monaxial joints in which bones spin on its longitudinal axis.
radioulnar joint at the elbow
What is the hip joint referred to as
Coxal joint
What is the fibrocartilage in the hip called
acetabular labrum
Ligaments that support the coxal joint
anterior
- iliofemoral
- pubofemoral
posterior
-ischiofemoral
What ligament arises from the fovea capitis of the femur and attaches to the lower margin of the acetabulum
Ligamentum teres (round ligament)
Which ligament bridges a gap in the inferior margin of the acetabular labrum?
transverse acetabular ligament
3 joints at the knee
patellofemoral
tibiofemoral
superior tibiofibular
Classification of tibiofemoral joint
primarily hinge joint - but allows slight internal and external rotation when flexed