Structures Limiting Movements Of Pectoral Girdle Flashcards Preview

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Flashcards in Structures Limiting Movements Of Pectoral Girdle Deck (10):
0

Joints at which flexion occurs

Sternoclavicular
Acromioclavicular
Glenohumeral
Scapulothoracic

1

Limiting structures of flexion

Ligaments: posterior part of coracohumeral, trapezoid, and posterior part of joint capsule of glenohumeral joint
Muscles: rhomboids, levator scapulae, extensor and external rotator muscles, rotator muscles of glenohumeral joint

2

Joints of abduction

Sternoclavicular
Acromioclavicular
Glenohumeral
Scapulothoracic

3

Abduction limiting structures

Ligaments: middle and inferior glenohumeral, trapezoid, and inferior part of joint capsule of glenohumeral joint
Muscles: rhomboids, levator scapulae, adductor muscles of glenohumeral joint
Bony apposition between greater tubercle of humerus and superior part of glenoid cavity/labrum or lateral aspect of acromion

4

Extension joint

Glenohumeral

5

Extension limiting structures

Ligaments: anterior part of coracohumeral and anterior part of joint capsule of glenohumeral joint
Muscles: clavicular head of pectoralis major

6

Medial (internal) rotation joint

Glenohumeral

7

Medial (internal) rotation limiting structures

Ligaments: posterior glenohumeral joint capsule
Muscles: infraspinatus and teres minor

8

Lateral (external) rotation joint

Glenohumeral

9

Lateral (external) rotation limiting structures

Ligaments: glenohumeral, coracohumeral, anterior glenohumeral joint capsule
Muscles: latissimus dorsi, teres major, pectoralis major, subscapularis