chapter 5 lesson 3 Flashcards
Osteokinematics
Movement of a limb that is visible. Bone movement.
Arthrokinematics
The description of joint surface movement. Consist of three major types: roll, slide, and spin.
Synovial joints
Are movable joints that allow for smooth frictionless movement between bones. They are characterized by a fluid filled capsule and a specific structure that enable various types of motions
What percentage do synovial joints make up in the body
80 percent.
What are the 6 types of joints
Plane joint, hinge joint, pivot joint, condyloid joint, saddle joint, ball and socket joints.
Plane joints
Are essentially flat, short nonaxial gliding movements. gliding does not involve rotation around any axis and gliding joints are the only examples of nonaxial plant joints.
Hinge joint
The cylindrical end of one bone. Conforms to a trough shaped surface on another. motion is long a single plane and resembles that of a mechanical hinge. Uniaxial hinge joints permit flexion and extensions only.
Pivot joint
The rounded end of one bone conforms to a sleeve or ring composed of bone of another. The only movement allowed is uniaxial rotation of one bone around its own long axis. allows your head to move from side to side.
Condyloid joint
The oval articular surface of one bone fits into a complementary depression in another, the biaxial condyloid joints permit all angular motion, that is , flexion and extension, abduction and adduction, circumduction.
Saddle joint
Resembles a condyloid joint. They allow greater freedom of movement. Each articular surface has both concave and convex areas, that is its shaped like a saddle. One good example is your thumb.
Ball and socket joints
Multiaxial joint. In ball and socket joints. The spherical or hemispherical head of one bone articulates with the cuplike socket of another, these joints are multiaxial and the most freely moving synovial joints.
Non Synovial joints
Joints that have no joint capsule, fibrous connective tissue or cartilage in the uniting structure
