Appendicular Skeleton part 1 (quiz 4) Flashcards
What are the 4 bones of the pectoral girdle?
2 clavicles, 2 scapulae
The _____________ girdle is a part of the upper limb and attaches upper limb to axial skeleton
pectoral
What are the bone attachments of the sternoclavicular joint?
-sternal end of the clavicle
-manubrium of the sternum
-rib 1
What is another name for the sternoclavicular joint?
manubrioclavicular joint
What type of joint is the sternoclavicular joint?
test q
synovial saddle joint (biaxial/multiaxial)
What movements are possible with the sternoclavicular joint?
-elevation and depression (vertical plane)
-protraction and retraction (anterior and posterior)
-moves with scapula (rotation)
What are the supporting ligaments and structures of the sternoclavicular joint?
-capsular ligament and joint capsule
-intra-articular disc/ligament
-interclavicular ligament
-costoclavicular ligament
The capsule ligamnet/joint capsule and intra-articular disc/ligament are an atypical synovial joint. Why?
usually synovial joints are hyaline cartilage, but these are made of fibrocartilage
What injury can occur and damage the sternoclavicular joint?
clavicular dislocation
-posterior is the most dangerous because there are big arteries and veins behind the clavicle
What are the bony landmarks of the acromioclavicular joint?
-scapula (acromion process and coracoid process)
-clavicle (distal end, trapezoid line, and conoid tubercle)
What are the supporting ligaments of the acromioclavicular joint?
-acromioclavicular ligament
-coracoacromial ligament
-coracoclavicular ligament (trapezoid and conoid ligament)
The acromioclavicular ligament has a joint capsule. What type of joint is it?
synovial planar joint
What type of joint is the glenohumeral joint?
synovial ball and socket (multiaxial, circumduction)
What is a part of the joint capsule for the glenohumeral joint?
-glenohumeral ligaments (superior, middle, and inferior)
-coracohumeral ligament
-insertions of rotator cuff muscles attach to the exterior joint capsule
-tendon of biceps brachii long head runs inside the joint capsule (covered by tenosynovium and is anchored by the transverse humeral ligament)
Which joint has insertions of the rotator cuff muscles on the joint capsule exterior?
glenohumeral joint
Which joint has the tendon of biceps brachii long head run in the internal joint capsule?
glenohumeral joint
What is the tendon of the biceps brachii long head anchored by in the glenohumeral joint capsule?
transverse humeral ligament
What is glenoid labrum?
fibrocartilage lip on the glenoid cavity of the glenohumeral joint
What bursae are a part of the glenohumeral joint?
-subacromial
-subscapular
-subcoracoid
What are the 4 muscles of the rotator cuff?
-supraspinatus
-infraspinatus
-teres minor
-subscapularis
Shoulder dislocation includes the…….
humerus
Shoulder dislocation involves the humerus. What ligaments are involved?
glenohumeral and coracohumeral ligament
Shoulder separation involves the….
clavicle
Shoulder separation involves the clavicle. What ligaments are involved?
acromioclavicular, coracoclavicular, coracoacromial ligament
