pectoral region LOs

Question 1

sternoclavicular joint

Answer 1

sellar/saddle

Question 2

acromioclavicular joint

Answer 2

plane/gliding

Question 3

glenohumeral joint

Answer 3

ball and socket

Question 4

scapulothoracic joint

Answer 4

pseudo-joint necessary for full glenohumeral function

Question 5

coracoclavicular ligament

Answer 5

• function: stabilizes acromioclavicular joint limiting medial displacement, protraction, and elevation
• attachments:
  
  • trapezoid: from coracoid process to trapezoid line of clavicle
  • conoid: from coracoid process to conoid tubercle of clavicle

Question 6

acromioclavicular ligament

Answer 6

• function: stabilizes acromioclavicular ligament
• attachments: superior aspect of acromial end of clavicle to adjacent acromion

Question 7

coracoacromial ligament

Answer 7

• function: prevents superior displacement of humeral head fby forming coracoacromial arch
• attachments: lateral border of coracoid process to acromion adjacent to clavicular articulation

Question 8

coracohumeral ligament

Answer 8

• functions: reinforces superoanterior aspects of joint capsule
• attachments: base of coracoid process to anterior aspect of greater tubercle

Question 9

costoclavicular ligament

Answer 9

• functions: stabilizes sternoclavicular joint, limits elevation of clavicle
• attachments: superior aspect of cartilage of first rib to undersurface of clavicle

Question 10

superior transverse scapular ligament

Answer 10

• function: closes suprascapular notch
• attachments: base of coracoid process to medial edge of scapular notch

Question 11

glenoid capsule ligament

Answer 11

• attachment: from circumference of glenoid cavity to anatomical neck of humerus

Question 12

glenohumeral ligaments (superior, middle, inferior)

Answer 12

• function: stabilizes glenohumeral articulation
• attachments: upper part of medial margin of glenoid cavity to lesser tubercle/anatomical neck