Chapter 9 Flashcards
(41 cards)
An immovable joint can be fibrous or cartilaginous
Synarthrosis
Joints were two bones interconnect
Articulations
An articulation that permits a small degree of independent movement.
Amphiarthrosis
A freely moveable joint, a synovial joint.
Diarthrosis
Is a synnarthoratic joint located only between the bones of the skull; a fibrous joing between flat bones of the skull.
Suture
A fibrous synarthrosis that binds a tooth to the bone of the jaw.
Gomphosis
Is a rigid, cartilaginous connection between two articulating bones. The ends of the first pair of vertebrosternal ribs and the sternum is a synchondrosis.
Synchondrosis
Is a totally ridge immovable joint created when two bones fuse and the boundary between them disappears.
Synostosis
Bones are connected by a ligament. Is the distal articulation between the tibia and fibula.
Syndesmosis
A fibrous amphiarthrosis, such as that between adjacent vertebrae or between the pubic bones of the coxal bones; The articulating bones are separated by a wedge or pad of fibrous cartilage.
Symphysis
The cartilage pad that covers the surface of a bone inside a joint cavity; reassembles hyaline cartilage.
Articular cartilages
The substnce secreted by synovial membranes that lubricates joints; Resembles interstitial fluid but contains a high concentration of proteoglycans secreted by fibroblasts
Synovial fluid
A fibrous cartilage pad betwen opposing surfaces in a joint; Is a pad of fibrous cartilage situated between opposing bones within a synovial joint
Meniscus
Are localized masses of adipose tissue covered by a layer of synovial membrane
Fat pads
Ligament is stretched to the point at which some collagen fibers are torn
Sprain
A small sack filled with synovial fluid that cushions adjacent structures and reduces function; small, fluid-filled pockets in connective tissue
Bursae
Is a dislocation in the articulating surfaces are forced out of position
Luxation
The damage accompanying a partial dislocation
Subluxation
Two opposing surfaces slide past one another
Gliding
Is movement in the anterior-posterior plane that reduces the angle between the articulating elements
Flexion
Occurs in the same plane but it increases the angle between articulating elements
Extension
A movement at a synovial joint in whcih the distal end of the bone moves in a circular direction, but the shaft dose not rotate; Corresponds to the path your arm when you draw a large circle on a chalk board
Circumduction
Extension past the anatomical position
Hyperextension
Is movement away from the longitudinal axis (midline) of the body in the frontal plane
Abduction