Joints Flashcards
The study of joints
Arthrology
How are joints classified?
According to the degree of movement they permit and their tissue structure
Joints with no movement
Synarthroses
Syn sounds like sin, so I think of something that isn’t allowed
Joints with slight movement
Amphiarthroses
Think of amphibians; they can live both on land and in water
Joints that move freely
Diarthroses
What type of tissue structure is synarthroses
Fibrous
like the sutures of the skull
What type of tissue structure is amphiarthroses
Cartilaginous
like vertebrae
What type of joints are diarthroses
Synovial
The joints you typically think of as joints. Knee, hip, elbow, etc
Tyles of synovial joints
Hinge(like elbow/olecranon), ball and socket (like hip/acetabulum), gliding (like waving hand), pivot (like head), condyloid (like stifle)
Types of movement
Flexion, extension, abduction, addiction, circumduction, and rotation
(Remember: in ab-, the b faces AWAY from the a. In ad-, the b faces TOWARD the a. Duct means to lead.)
(Rotation occurs on an axis, meaning it turns in one place. Circumduction is like a revolution; it moves in circles but does not spin.)
Covering around the articulating ends of the bones
Joint capsule
Synovial membrane
Secretes the synovial fluid that lubricates the joints)
Space between opposing surfaces of bones of the joint
Joint cavity
Connects bone to bone
Ligament
Turn the L into a bone
Connects bone to muscle
Tendon
Bursae
Sacs of connective tissue filled with synovial fluid)
