Anatomy Of Shoulder Region Flashcards

1
Q

Ligaments of shoulder joint?

A

Coracoclavicular
Coracoacromial
Glenohumeral:
Superior middle and inferior

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2
Q

Which joint prevent superior dislocation?

A

Coracoacromial

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3
Q

Deltoid muscle origin, insertion and role?

A

Origin- spine of scapula and acromion, clavicle
Inserts onto deltoid tuberosity

Abduction

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4
Q

Anterior fibres of deltoid help with?

A

Flexion and medial rotation

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5
Q

Posterior fibres of deltoid do?

A

Extension, lateral rotation

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6
Q

Deltoid is supplied by?

A

Axillary nerve

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7
Q

Adduction of arm done by?

A

Latissimus dorsi, pec major

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8
Q

Overhead abduction muscles helping?

A

Trapezius and serratus anterior

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9
Q

Overhead Adduction of arm?

A

Levator scapulae and rhomboids

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10
Q

Long head of biceps joins at?

A

Supraglenoid tubercle

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11
Q

Brachialis only helps with?

A

Flexion of forearm

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12
Q

Long head of triceps joins at?

A

Infraglenoid tubercle

Starts at olecranon

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13
Q

Which dislocation of shoulder is common?

A

Anterior, humeral head descends down then anterior

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14
Q

Glenoid labrum is?

A

Cartilage deepens glenoid fossa

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15
Q

What runs through bicipital groove?

A

Long head of biceps

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16
Q

Which ligament runs over bicipital groove?

A

Transverse humeral ligament

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17
Q

Subscapularis inserts onto?

A

Lesser tubercle

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18
Q

Teres minor comes from?

A

Lateral border of scapula

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19
Q

Which muscle initiates of abduction?

A

Supraspinatus, initial 10-15 degrees

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20
Q

Infraspinatus and teres minor are?

A

Lateral rotators

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21
Q

Subscapularis action?

A

Medial rotation

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22
Q

Supraspinatus injury?

A

Decreasing of fluid in subacromial bursa,

Impingement of supraspinatus

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23
Q

Scapula anastomoses?

A

Suprascapular form thyrocervical trunk and dorsal scapular from subclavian and subscapular (from axillary)

24
Q

Suprascapular nerve supplies?

A

Supraspinatus and infraspinatus, through scapula notch

25
Q

Suprascapular nerve comes from?

A

Branch of superior trunk

26
Q

Latissimus dorsi nerve?

A

Thoracodorsal

27
Q

Lateral pectoral nerve supplies?

A

Pec major

28
Q

What does medial pectoral nerve do?

A

Medial pectoral nerve pierces pec minor to supply pec major

29
Q

Coracoclavicular has 2 parts?

A

Conoid and trapezoid ligaments

30
Q

Flexion of arm happens through?

A

Biceps coracobrachialis and anterior fibres of deltoid

31
Q

Which muscles help with extension of arm?

A

Long head of triceps, posterior fibres of deltoid and latissimus dorsi

32
Q

Which insert onto greater tubercle?

A

Supraspinatus, infraspinatus and teres minor

33
Q

Teres major performs?

A

Medial rotation

34
Q

Origin and insertion of teres major?

A

Inferior angle of scapula to medial lip of bicipital groove

35
Q

Axillary nerve supplies?

A

Deltoid and teres minor

36
Q

Other nerves from posterior cords?

A

Upper/lower subscapular nerves

Thoracodorsal nerve

37
Q

Upper and lower subscapular nerves supply?

A

Subscapularis and teres major

38
Q

How is the quadrangular space formed?

A

Teres minor and major, humerus and long head of triceps

39
Q

Which is the major stabilising ligament of joint?

A

Coracoclavicular

40
Q

Which ligament prevent superior dislocation?

A

Coracoacromial

41
Q

Biceps insertion?

A

Radial tuberosity

42
Q

Coracobrachialis origin and insertion?

A

Coracoid process to anteromedial surface of shaft

43
Q

Triceps insertion and origin?

A

Origin- infraglenoid tubercle and posterior surface of humerus

Insertion: olecranon of ulna and fascia of arm

44
Q

Rotator cuff muscles insert?

A

SIT onto greater tubercle

45
Q

Teres major origin and insertion?

A

Inferior angle of scapula to medial lip of bicipital groove

Medial rotation

46
Q

Posterior cord nerves?

A

Axillary nerve
Radial nerve
Thoracodorsal nerve
Upper/lower subscapular nerve

47
Q

What is the major stabilising ligament?

A

Coracoclavicular

48
Q

What helps with flexion of arm?

A

Corachobrachialis
Biceps
Anterior fibres of deltoid

49
Q

Extension of arm done by?

A

Posterior fibres of deltoid
Latissimus dorsi
Triceps

50
Q

Glenohumeral joints support?

A

Anterior of joint

51
Q

Rotator cuff muscle surround joint except?

A

Inferiorly

52
Q

Role of rotator cuff?

A

Together they stabilise the humeral head on the glenoid fossa

53
Q

What does teres major do?

A

Medial rotation and stabilises humerus during abduction

54
Q

What gives off suprascapular?

A

Thyrocervical trunk

55
Q

Upper and lower subscapular nerves supply?

A

Subscapularis

Teres major

56
Q

Lateral pec nerve supplies?

A

Pec major

57
Q

Medial pec nerve supplies?

A

Pec major and minor