Pectoral Region Flashcards
What type of synovial joint is the sternoclavicular joint?
Sellar/Saddle joint
What are the characteristics of a sellar/saddle joint?
They have articulating concave/convex surfaces that allow movement in two planes of motion
What are the characterstics of plane/gliding joints?
They have flat articulating surfaces that glide on top of one another
What type of synovial joint is the acromioclavicular joint?
plane/gliding
What type of synovial joint is the glenohumeral joint?
Ball and socket
Which joint in the pectoral region is considered a “pseudo” joint?
Scapulothoracic joint
What are the ligaments of the pectoral girdle?
1) coracoclavicular ligaments (2)
2) acromioclavicular ligment
3) coracoacromial ligament
4) coracohumeral ligament
5) costoclavicular ligament
6) superior transverse scapular
7) Glenohumeral ligaments (3)
What are the two ligaments that make up the coracoclavicuar ligaments?
1) Trapezoid ligament
2) Conoid Ligament
Which ligament is more medial of the coracoclavicular ligaments?
Conoid Ligament
What is the function of the coracoclavicular ligament?
stabilize the acromioclavicular joint
In stabilizing the acromioclavicular joint, the coracoclavicular ligament limits what movements of the clavicle?
1) medial displacement
2) protraction
3) elevation
What two structures does the trapezoid ligament attach to?
1) coracoid process
2) Trapezoid line of clavicle
What two structures does the conoid ligament attach to?
1) coracoid process
2) Conoid tubercle of clavicle
What does the acromioclavicular ligament attach to?
1) Superior aspect of the acromial end of the clavicle
2) Adjacent acromion
What is the function of the acromioclavicular ligament?
stabilize the acromioclavicular joint
