Articular System Flashcards
Name an example of a fibrous joint
Fuse cranium, maxilla, nasal bones
What are the 3 different classifications of joints?
Fibrous, Cartilaginous, and Synovial
Name an example of a cartilaginous joint
Ribs to sternum, symphysis pubis
What is a fibrous joint?
Fibrous tissue binds and then ossified (turns to bone) so that the joint is now sealed. Example: the plates of the skull fusing together
What is a cartilaginous joint?
Malleable tissue that occupies the space between bones to allow a little movement when it’s needed Example: Ribs and Sternum connected by cartilage to enable breathing
What are the 6 different types of synovial joints?
Ball and socket, ellipsoid, saddle, pivot, hinge and gliding/plane
Describe the ball and socket joint, what movement does it allow and give an example.
The ball/head of one bone fits into the socket of another to allow articulation. It permits ALL movements. Example: shoulder and hip joint
Describe a hinge joint, what movement does it allow and give an example.
One bone has a C-shaped surface and the other is rounded and smooth. Movement is limited to flex ion and extension. Example: elbow, ankle and interphalangeal joints
Describe the saddle joint, what movements it allows and give an example.
Concave surfaces of two bones articulate with one another. Allows all movements but rotational movement is limited. Example: carpometacarpal joking of the thumb
Describe the ellipsoid joint, what movements does it allow and give an example
It is a reduced ball and socket joint. It is egg shaped. Rotation is not possible. Example: radio carpal joint
Describe the pivot joint, what movements does it allow and give an example.
A ring of bone that rotates around a process of bone. Only rotation is allowed. Example: skull on its atlas.
Describe the gliding joint, what movements does it allow and give an example.
Two opposed flat surfaces of bone gliding across one another. Movement is limited to gliding but is multiaxial. Example: inter carpal joints
A ball and socket joint is ______axial
Multi
The ellipsoid and saddle joints are….
Biaxial
The pivot and hinge joints are….
Uniaxial
