articulations quiz
- CT that forms the joint
- The presence or absence of a space or cavity between bones
structure classification
no movement
synarthrosis
little movement
amphiarthrosis
free movement
diarthrosis
- No synovial cavity
- Dense fibrous CT w/ collagen fibers
- Little or no movement
fibrous joints
sutures, sockets for teeth (gomphoses), distal joint b/t tibia fibula (syndesmosis)
examples of fibrous joints
- No synovial cavity
- Hyaline cartilage or fibrocartilage
- Little or no movement
cartilaginous joints
intervertebral joints, pubic symphysis, b/t manubrium and body of sternum
examples of cartilaginous joints
- Synovial cavity
- Synovial fluid
- Free/large range movement
- Dense CT on outside of joint, holding bones in place
synovial joints
knee shoulder hip elbow
examples of synovial joints
encloses the synovial joint cavity; contains two layers—fibrous membrane, synovial membrane
articular capsule
hyaline cartilage that covers the ends of the bones within the synovial cavity
articular cartilage
outermost dense fibrous CT layer of the articular capsule that strengthens the joint
fibrous membrane
small space b/t the two articulating bones
synovial cavity
fluid contained in the synovial cavity, secreted by synovial membrane, lubricates and reduces friction in articular cartilage
synovial fluid
innermost layer of the articular cartilage that produces synovial fluid
synovial membrane
back and forth side to side over one another, little changes in angles b/t bones
gliding
increase or decrease in angle b/t bones
angular
movement of bone around longitudinal axis; in limbs, may be medial or lateral
rotation