module 5 part 3- final
What are joints
also called articulations where two or more bones meet
what are the functions of joints
give skeleton mobility and hold skeleton together
what are the joint classes
Fibrous
cartilaginous
synovial
What are the joint types under fibrous?
suture
sydesmosis
gomphosis
What are the Cartilaginous joint types
Synchondrosis
symphsis
what are the synovial joint types?
Plane: nonaxial (intercarpal joint)
Hinge: uniaxial (elbow joints)
Pivot: uniaxial (atlantoaxial joint)
condylar: biaxial (wrist/knucle joints)
saddle: biaxial (carpometacarpal joints)
ball and socket: multiaxial (shoulder/hip joints)
Class A: fibrous joints
joined by collagen fibers of connective tissue
immoveavle or slighlty moveable
suture
joint held together with very short interconnecting fibers and bone edges interlock
found only in the skull
Syndesmosis
joint held together by a ligament
fibrous tissue can vary in length but longer than sutures
Gomphosis
"peg in socket" fibrous joint
periodontal ligament that holds tooth in socket
Class B: cartilaginous
bones joined by cartilage
immoveable or slightly moveable
Synchondroses
bones united by hyaline cartilage
symphyses
bones united by fibrocartilage
Class C: synovial
bones covered with articular joint, seperated by joint caity and enclosed within capsule
freely moveable
common joint injury: cartilage tear
overuse injury (knee minisci)
cartilage frgments interfere with joint function
treatment: arthroscopic surgery
common joint injury: sprains
ligaments reinforcing joint are stretched or torn
healing is slow due to poor vascularization
inflammatory/ degenerative condition: tendonitis
inflammation of the tendon
treatment: ice, rest, anti-inflammatory drugs
inflammatory/degenerative condition: arthritis
Inflammation of one or more joints
over 100 different types
diseases affective joint comfort and function