Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Functional Anatomy > Glenohumeral Joint > Flashcards

Glenohumeral Joint Flashcards

1
Q

What are the 3 main elements that work together to maintain glenohumeral stability?

A

Ligaments, Labrum and Muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the Ligaments surrounding the GH Joint?

A
  • Superior GH
  • Medial GH
  • Inferior GH
  • Coracohumeral
  • Coracoacromial
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the function of the Superior GH Ligament?

A

Resists full adduction of the shoulder

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the function of the Medial GH Ligament?

A

Resists excessive external rotation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the function of the Inferior GH Ligament?

A

Resists excessive abduction and internal/external rotation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the function of the Coracohumeral ligament?

A

Resists excessive extension, flexion and external rotation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the function of the Coracoacromial ligament?

A

Forms a bridge over the top of the joint, binding the coracoid to the acromion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the function of the labrum in the GH joint?

A

It deepens the glenoid cavity by forming a rim, which helps stability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the main stabilising muscles of the GH joint?

A

Rotator Cuff
Long head of Biceps
Long head of Triceps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the muscles of the rotator cuff?

A
  • Subscapularis
  • Supraspinatus
  • Infraspinatus
  • Teres Minor
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

In what directions does the long head of the biceps stabilise the GH joint?

A

Anterior and Superior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

In what directions does the long head of the triceps stabilise the GH joint?

A

Posterior and Inferior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the origin, insertion and action of the Clavicular fibres of Pec Major?

A
  • O: Anterior surface of medial half of clavicle
  • I: Bicipital Groove of Humerus
  • A: Flexion, Medial Rotation, Adduction
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the origin, insertion and action of the sternal fibres of Pec Major?

A
  • O: Anterior surface of sternum, upper 6 costal cartilages
  • I: Bicipital Groove
  • A: Extension, Adduction, Transverse Adduction and Medial Rotation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the origin, insertion and action of the Coracobrachialis?

A
  • O: Tip of Coracoid Process (medial to short head of Biceps)
  • I: Medial aspect of humerus
  • A: Transverse Adduction
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the origin, insertion and action of the Subscapularis?

A
  • O: Medial and Lower 2/3 of the lateral border on costal surface of the scapula (Subscapular Fossa)
  • I: Lesser tubercle, shoulder joint capsule and anterior upper shaft of humerus
  • A: Stability and Internal Rotation
17
Q

What is the origin, insertion and action of the Biceps Brachii?

A
  • O: Supraglenoid tubercle (long head) and coracoid process (short head)
  • I: Radial Tuberosity via biceps tendon
  • A: Forearm Supination, Elbow Flexion, Shoulder Flexion, Stability
18
Q

What is the origin, insertion and action of the Infrapsinatus?

A
  • O: Infraspinous fossa
  • I: Middle facet of greater tubercle of humerus
  • A: External Rotation and Stability
19
Q

What is the origin, insertion and action of the Teres Minor?

A
  • O: 2/3 Lateral border of scapula
  • I: Greater Tubercle of Humerus
  • A: External rotation, adduction, stability
20
Q

What is the origin, insertion and action of the anterior deltoid fibres?

A
  • O: Anterior border of the lateral third of the clavicle
  • I: V shaped deltoid tuberosity on lateral aspect shaft of humerus
  • A: Flexion, internal rotation
21
Q

What is the origin, insertion and action of the lateral delt fibres?

A
  • O: Lateral border of acromion
  • I: V Shaped deltoid tuberosity (lateral aspect shaft of the humerus)
  • A: Abduction when int rotated, and trans abduction when ext rotated
22
Q

What is the origin, insertion and action of the posterior delt fibres?

A
  • O: Lower lip of scapular spine
  • I: V shaped deltoid tuberosity (lateral aspect shaft of the humerus)
  • A: Extension and External Rotation
23
Q

What is the origin, insertion and action of the Supraspinatus?

A
  • O: Supraspinous fossa
  • I: Tendon inserts upper facet of greater humeral tubercle
  • A: Initiation of abduction and stability
24
Q

What is the origin, insertion and action of the Latissimus Dorsi?

A
  • O: Spines and supraspinous ligaments T7-12, Posterior part of iliac crest, lower 4 ribs
  • I: Inferior angle of the scapula, bicipital groove of the humerus
  • A: Extension, Adduction, Internal Rotation
25
Q

What is the origin, insertion and action of the Teres Major?

A
  • O: Dorsal aspect of inferior angle of scapula and lateral border of scapula
  • I: Medial lip of Bicipital groove
  • A: Adduction, Int Rotation, and Extension
26
Q

What is the origin, insertion and action of the Triceps Brachii long head?

A
  • O: Infraglenoid tubercle of the scap
  • I: Olecranon process of the ulna
  • A: Elbow extension, adduction, extension, hyperextension, stability

Functional Anatomy (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions