shoulder girdle

Question 1

ligaments of the shoulder girdle

Answer 1

Superior, middle and inferior glenohumeral ligament
Redundant capsule
Coracohumeral ligament
Transverse humeral ligament
Coracoclavicular ligaments
Acromioclavicular ligament

Question 2

list muscles involved in shoulder flexion

Answer 2

pectoralis major,
anterior deltoid,
coracobrachialis

Question 3

list muscles of shoulder extension

Answer 3

posterior deltoid, latissimus doors, teres major

Question 4

list muscles of shoulder abduction

Answer 4

supraspinatus, deltoid, trapezius, serratus anterior

Question 5

list muscles of shoulder adduction

Answer 5

pectoralis major, latissimus doors, teres major

Question 6

list muscles of shoulder internal rotation

Answer 6

subscapularis, pectorals major, teres major

Question 7

list muscles of shoulder external rotation

Answer 7

infraspinatus and teres minor, posterior head of deltoid

Question 8

structures responsible for shoulder stability

Answer 8

Rotator cuff muscle - subscapularis, supraspinatus, infraspinatus, teres minor
Glenoid labrum
Ligaments
Biceps tendon

Question 9

innervation of the shoulder girdle hint; lateral and medial, posterior cord

Answer 9

Lateral cord
Musculocutaneous nerve
lateral pectoral nerve
lateral root at median

Medial cord
medial pectoral nerve
medial cutaneous nerve of arm and forearm
medial root of median
ulnar

Posterior cord
Subscapular nerve(2 superior and inferior)
nerve TO latissimus dorsi
Axillary nerve

Question 10

list origin, insertion, innervation, action and blood supply of subscapularis

Answer 10

O - medial 2/3 of sub scapular fossa
I - lesser tubercle of humerus
N - upper and lower sub scapular nerves
A - medial rotation

Question 11

list origin, insertion, innervation, action and blood supply of supraspinatus

Answer 11

O - medial 2/3 of supraspinatus fossa
I - greater tubercle of humerus
N - supra scapular nerve
A - abduction of shoulder an stabilisation

Question 12

list origin, insertion, innervation, action and blood supply of infraspinatus

Answer 12

O - medial 2/3 of infraspinous fossa of scapula
I - middle facet of posterior surface of greater tubercle of humerus
N - Suprascapular nerve
A - lateral rotation and stabilisation

Question 13

list origin, insertion, innervation, action and blood supply of teres minor

Answer 13

O - upper 2/3 of flattened strip of bone posterior of scapula, lateral border of scapula
I - inferior aspect of greater tubercle of humerus
N - axillary nerve
A - lateral rotation and stabilisation of GH joint