arthrology of the glenohumeral joint

Question 1

describe articular surfaces of glenohumeral joint

Answer 1

glenoid fossa of scapula and head of humerus

Question 2

classify the glenohumeral joint

Answer 2

synovial, ball and socket, complex, multi-axial

Question 3

describe the articular surface of the glenoid fossa

Answer 3

• deepened by glenoid labrum
  -concave vertically and transversely

Question 4

describe the attachments of the glenoid labrum

Answer 4

• attaches to glenoid fossa, forming a rim around it
  attaches to tendon of long head of bicep, superior glenohumeral ligament, inferior glenohumeral ligament

Question 5

name the intrinsic ligaments of the joint

Answer 5

superior glenohumeral lig
inferior glenohumeral lig
middle glenohumeral lig
transverse humeral lig

Question 6

attachments of superior glenohumeral ligament

Answer 6

from upper glenoid margin and labrum to the upper surface of the lesser tubercle

Question 7

attachments of inferior glenohumeral ligament

Answer 7

passes from glenoid margin to anteroinferior part of neck

Question 8

attachments of middle glenohumeral ligament

Answer 8

arises below superior glenohumeral ligament and passes to the front of the lesser tubercle

Question 9

attachments of transverse humeral ligament

Answer 9

bridges gap between lesser and greater tubercles at the upper end of intertubercular groove

Question 10

what movement does superior glenohumeral ligament limit

Answer 10

lateral rotation of humerus

Question 11

what movement does the inferior glenohumeral ligament limit

Answer 11

limits lateral rotation and abduction

Question 12

what movement does middle glenohumeral ligament limit

Answer 12

lateral rotation and anterior translation of humeruswh

Question 13

what are the accessory ligaments of the joint

Answer 13

coracohumeral ligament
coracoacromial ligament

Question 14

attactchment of coracohumeral ligament

Answer 14

lateral border of coracoid process to transverse humeral ligament and adjacent part of neck

Question 15

attachments of coracoacromial ligament

Answer 15

passes between acromial and coracoid processes above humeral head

Question 16

describe the factors that provide stability at the joint

Answer 16

ligaments
rotator cuff muscles
glenoid labrum
biceps tendon