Lecture 15 - Musculoskeletal Thoracic Limb 2 Flashcards
Fibrous joint
fibrous connective tissue
Cartilaginous joint
cartilage
Synovial joint
cavity between bones surrounded by an articular capsule
Synarthrosis
no movement
Amphiarthrosis
slight movement
Diarthrosis
free movement
examples of fibrous joints
skull sutures and gomphosis
examples of cartilaginous joints
growth plate and pubic symphysis
What are the two types of cartilage in cartilaginous joints
hyaline and fibrocartilage
components of synovial joint
articular cartilage and capsule, joint cavity, synovial fluid
what holds synovial joints together
ligaments
T/F: articular cartilage is avascular
true
what are the two membranes of the articular capsule
outer fibrous capsule and inner synovial membrane
what does the synovial capsule contain
blood vessels, lymphatics, nerves
what is the job of synovial fluid
- lubricates joint
- aids in shock absorption
- supplies nutrients/removes waste
What are the 7 types of synovial joint classification
- saddle
- hinge
- pivot
- bicondylar
- ellipsoid
- plane
- ball and socket
what is the classification of the glenohumeral joint
synovial (ball and socket); diarthrosis
T/F; mobility comes at the expense of stability
True
what deepens the glenoid cavity
the glenoid labrum via attachment to the rim
Why is the elbow a “complex” joint
composed of three joints within one articular capsule
What is the primary job of the:
humeroradial joint
weight bearing
What is the primary job of the:
humeroulnar joint
restricts sagittal deviations
What is the primary job of the:
proximal radioulnar joint
limited rotation of radius on ulna
What is the primary job of the:
medial and lateral collateral ligaments (elbow)
restrict rotation and stabilize
