Shoulder

Question 1

Name the rotator cuff muscles

Answer 1

Supraspinatus
Infraspinatus
Teres minor
Subscapularis

Question 2

Name the intrinsic shoulder muscles

Answer 2

Deltoid

Teres major

Question 3

Name the remaining shoulder muscles

Answer 3

Serratus anterior

Subclavius

Question 4

What is the nerve innervation of the supraspinatus and infraspinatus?

Answer 4

Suprascapular nerve

Question 5

What is the arterial supply to the supraspinatus and infraspinatus?

Answer 5

Suprascapular artery

Question 6

What nerve innervates teres minor?

Answer 6

Axillary nerve

Question 7

What artery supplies teres minor?

Answer 7

Circumflex artery

Question 8

What nerve supplies the subscapularis?

Answer 8

Upper and lower subscapular nerves

Question 9

What arteries supplies the subscapularis?

Answer 9

Subscapular lateral artery

Question 10

Supraspinatus

Answer 10

Initiates arm abduction

Question 11

Infraspinatus

Answer 11

Lateral rotation of arm

Question 12

Teres minor

Answer 12

Lateral rotation of arm

Question 13

Subscapularis

Answer 13

Medially rotates arm at shoulder and adducts it, helps hold humeral head in glenoid cavity

Question 14

Attachments of supraspinatus

Answer 14

Supraspinatus fossa of scapula to superior facet of greater tubercle of humerus

Question 15

Attachment of infraspinatus

Answer 15

Infraspinatus fossa of scapula to middle facet of greater tubercle of humerus

Question 16

Attachment of teres minor

Answer 16

Upper 2/3 of posterior surface of lateral border of scapula to inferior facet of greater tubercle of the humerus

Question 17

Attachment of subscapularis

Answer 17

Subscapular fossa to lesser tubercle of humerus

Question 18

What nerve innervates the deltoid?

Answer 18

Axillary nerve

Question 19

What artery supplies the deltoid?

Answer 19

Posterior circumflex humeral artery, deltoid branch of thorao-acromial artery

Question 20

Deltoid

Answer 20

Clavicular - flexes and medially rotates arm
Acromial - abducts arm beyond initial 15 degrees
Spinal - extends and laterally rotates arm

Question 21

Attachments of the deltoid

Answer 21

Lateral third of anterior clavicle, lateral acromion, inferior edge of spine of scapula to deltoid tuberosity of humerus

Question 22

What nerve innervates the teres major?

Answer 22

Lower sub scapular nerve

Question 23

What artery supplies teres majorr?

Answer 23

Circumflex scapular artery

Question 24

Teres major

Answer 24

Adducts and medially rotates arm

Question 25

Attachments of teres major

Answer 25

Posterior surface of interior angle of scapula to medial lip of intertubercular sulcus of humerus

Question 26

What nerve innervates the subclavius?

Answer 26

Nerve to subclavian

Question 27

What artery supplies the subclavius?

Answer 27

Clavicular branch of thoraco - acromial artery

Question 28

Subclavius

Answer 28

Anchors and depresses clavicle

Question 29

Attachments of subclavius

Answer 29

Upper border of 1st rib and cartilage to inferior surface of middle third of clavicle