9.4b types of synovial joints

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Saddle joint

Articular surfaces of the bones have convex & concave regions that resemble the shape of a saddle.

Metacarpophalangeal

Biaxial condylar joints

Condylar joints

Biaxial joints with an oval, convex surface on one bone that articulates with a concave articular surface on the second bone.

Carpometacarpal

Biaxial saddle joint

Uniaxial

Bone moves in just one plane or axis.

Multiaxial

Bone moves in multiple plane or axis.

Biaxial

Bone moves in two planes or axes.

Pivot joint

Is a uniaxial joint in which one articulating bone with a rounded surface fits into a ring formed by a ligament & another bone

Hinge joint

Is a uniaxial joint in which the convex surface of one articulating bone fits into a concave depression on the other bone.

Hip joint & glenohumeral joints

Multiaxial ball-and-socket joints

Ball-and-socket joints

Multiaxial joints in which the spherical articulating head of one bone fits into the rounded, cuplike socket of a second bone.

Elbow and knee joints

Uniaxial Hinge joint

Intercarpal and intertarsal joints

Uniaxial Plane joint

Atlantoaxial & radioulnar joint

Uniaxial pivot joint

Plane joint

Uniaxial. Simplest synovial articulation and the least mobile type of diarthrosis.


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