Diarthroses Of Vertberal Column + Thorax Flashcards
Name the 4 synovial joints of the vertebral column + thorax
Zygapophyseal joints, costovertebral joints, costotransverse joints, sternoclavicular joint
Define Zygapophyseal joints based on shape + movement allowed. How do they vary from vertebral level? Describe the fibrous articular capsules, where are they longer + looser and why might this be?
Plane synovial
Size, shape, movements vary
Thin + loose; cervical = 45˚ articulation btwn facets, (^movement)
Zygapophyseal joints may contain fat pads or fibroadipose menisci in what region? Why might this be?
Lumbar = 90˚ articulation btwn facets (^movement)
What is the innervation of Zygapophyseal joints?
Med. branches of dorsal rami
Ascending branch of nerve below, descending of above
What other two joints are Plane synovial in the vertebral column?
Costovertebral + costotransverse joints
Where are costovertebral joints located? What type of ligaments are involved based on their location to the joint? Name the 2 ligaments involved
Head of rib + costal facets of vertebral body
Extrinsic ligaments = radiate + intra-articular ligaments
Where are costotransverse joints located? What type of ligaments are involved based on their location to the joint? Name the 3 ligaments involved
Articular part of rib’s costal tubercle + TV transverse costal facet
Extrinsic ligaments = costotransverse, lat. costotransverse, + sup. Costotransverse ligaments
Based on shape + movement allowed, what type of joint is the sternoclavicular joint? Where is it located btwn?
Sellar synovial
Sternal clavicle + clavicular notch of sternum
The Sternoclavicular joint involves what additional feature? What type of ligaments are involved based on location to the joint? Name the 3 ligaments involved
Interarticular disc
Extrinsic ligaments = ant./post. Costoclavicular + interclavicular ligaments
