Shoulder primary structures Flashcards Preview

***NPTE Study: MSK > Shoulder primary structures > Flashcards

Flashcards in Shoulder primary structures Deck (16):
1

This ligament forms a roof over the humeral head and helps to

- limit superior translation of the humeral head
- prevent separation of the AC jt

coracoacromial ligament

2

This ligament surrounds the AC jt on all sides and helps to control horizontal movements of the clavicle

acromioclavicular ligament

3

This ligament acts as the primary support of the AC joint, limiting superior translation of the clavicle

coracoclavicular ligament

4

The coracoclavicular ligament consists of:

- conoid ligament
- trapezoid ligament

5

This ligament helps to unite the supraspinatus and subscapularis tendons and limits inferior translation of the humeral head

coracohumeral ligament

6

This ligament attaches between the medial portion of the clavicle and the first rib and is the primary supporting ligament for the SC jt

costoclavicular ligament

7

This ligament limits shoulder adduction as well as ER with shoulder in 0-45˚ abduction

superior glenohumeral ligament

8

This ligament limits shoulder ER in 45-90˚ abduction

middle glenohumeral ligament

9

This ligament has an anterior and posterior band that limits ER/IR above 90˚ abduction. Between the two bands is an axillary pouch that limits inferior translation when the shoulder is above 90˚ abduction

interior glenohumeral ligament

10

This consists of a dense fibrous connective tissue that is often damaged with recurrent shoulder instability

glenoid labrum

11

From where does the joint capsule arise?

arises from the glenoid fossa and glenoid labrum to blend with the RC muscles

12

The joint capsule is twice as large as the size of the humeral head and is reinforced by the

- GH ligaments
- coracohumeral ligament

13

What is the rotator interval?

space in the anterosuperior shoulder that consists of and is bordered by
- coracohumeral ligament
- superior GH ligament
- jt capsule
- supraspinatus/subscapularis tendons

14

Where is the subacromial bursa located?

- over supraspinatus tendon/distal mm belly
- under acromion and deltoid

15

This bursa overlies the anterior jt capsule and lies beneath the subscapularis muscle

Anterior shoulder fullness may indicate articular effusion 2/2 distention of the bursa

subscapular bursa

16

This ligament spans the bicipital groove

transverse humeral ligament