The Shoulder

Question 1

The four Rotator cuff muscles

Answer 1

Supraspinatus
Infraspinatus
Teres major
Subscapularis

Question 2

Upper arm muscles

Answer 2

Biceps brachii
Triceps brachii
Deltoideus
Teres major
Coracobrachialis

Question 3

Shoulder girdle muscles

Answer 3

Latissimis
Pectoralis major and minimus
Subclavius
Trapezius
Levator scapulae
Rhomboideus major and minor
Serratus anterior

Question 4

Ligaments of the shoulder

Answer 4

Coracoacromial ligament
Coracohumeral ligament
Glenohumerale ligament(connected to joint capsule)

Question 5

Injuries

Answer 5

Impingement and supraspinatus lession
Frozen shoulder
Shoulder luxation

Question 6

Supraspinatus muscle origin, insertion, innervation and function.

Answer 6

Origine:Supraspinatus fossa of scapula
Insertion: greater tubercle of humerus
Innervation: suprascapular nerve (C4 C6)
Function: abduction of arm to 15° at glenohumeral joint, stabilisation of humeral head in glenoid cavity.

Question 7

Infraspinatus muscle. Ori and inser

Answer 7

Origine:Infraspinatus fossa of scapula
Insertion: greater tubercle of humerus
Innervation: subscapular nerve(C5,C6)
Function: abduction of arm to 15° at glenohumeral joint, stabilisation of humeral head in glenoid cavity.

Question 8

Teres minor muscles ori, insertion, Innervation and function

Answer 8

Ori: lateral border of scapula
Inser: greater turbecle of humerus
Innervation: axillary nerve(C5 C6)
Function: external rotation and adduction of arm at glenohumeral joint,
Stabilisation of the humeral head in the glenoid cavity.

Question 9

Subscapularis ori, insertion, Innervation and function

Answer 9

Ori: medial two-third of the subscapular fossa
Insertion: lesser tubercle of the humerus
Innervation: upper and lower subscapular nerves( C5 C7)
Function: internal rotation of arm, stabilisation of humeral head in glenoid cavity.