Muscles of shoulder

Question 1

Origin, insertion, innervation of M supraspinatus?

Answer 1

O: supraspinous fossa
I: greater tubercle of humerus
Innervation: suprascapular nerve

Question 2

Origin, insertion, innervation of M infraspinatus?

Answer 2

O: infraspinous fossa
I: major tubercle of humerus
Innervation: suprascapular nerve

Question 3

Origin, insertion, innervation of M deltoideus?

Answer 3

O: 1. Scapular spine, 2. Acromion
I: deltoid tuberosity
Innervation: axillary nerve

Question 4

Origin, insertion, innervation of M teres major?

Answer 4

O: caudal angle of scapula
I: teres tuberosity
Innervation: axillary nerve

Question 5

Origin, insertion, innervation of M teres minor?

Answer 5

O: caudal border of scapula
I: tuberosity for teres minor
Innervation: axillary nerve

Question 6

Origin, insertion, innervation of M coracobrachialis?

Answer 6

O: coracoid process
I: lesser tubercle of humerus
Innervation: musculocutaneous nerve

Question 7

Origin, insertion, innervation of M biceps brachii?

Answer 7

O: supraglenoid tubercle of scapula
I: 1. Ulnar tuberosity, 2. Radial tuberosity
Innervation: musculocutaneous nerve

Question 8

Origin, insertion, innervation of M Tensor fasciae antebrachii?

Answer 8

O: latisimus dorsi
I: 1. Antebrachial fascia, 2. Olecranon
Innervation: radial nerve

Question 9

Origin, insertion, innervation of M triceps brachii, long head?

Answer 9

O: caudal edge of scapula
I: olecranon
Innervation: radial nerve

Question 10

Origin, insertion, innervation of M subscapularis

Answer 10

O: subscapular fossa
I: lesser tubercle of humerus
Innervation: subscapular nerve