Upper Extremity Final

Question 1

Pectoralis Major M. attachments

Answer 1

clavicle, sternum, and costal cartilages 1-6 to lateral edge of intertubercular groove of humerus

Question 2

Pectoralis Major M. innervation

Answer 2

medial and lateral pectoral Ns.

Question 3

Pectoralis Minor M. attachments

Answer 3

ribs 3-5 to the coracoid process of scapula

Question 4

Pectoralis Minor M. innervation

Answer 4

medial pectoral N.

Question 5

Serratus Anterior M. attachments

Answer 5

lateral side of external surface ribs 1-8 to the medial border of the scapula

Question 6

Serratus Anterior M. innervation

Answer 6

long thoracic N.

Question 7

Deltoid M. attachments

Answer 7

acromion, scapular spine, and clavicle down to the deltoid tuberosity of humerus

Question 8

Deltoid M. innervation

Answer 8

Axillary N.

Question 9

Deltoid M. blood supply

Answer 9

Posterior circumflex humeral A.

Question 10

Subscapularis M. attachments

Answer 10

subscapular fossa to lesser humeral tubercle

Question 11

Subscapularis M. innervation

Answer 11

Superior and inferior subscapular Ns.

Question 12

Supraspinatus M. attachments

Answer 12

Supraspinous fossa to greater humeral tubercle

Question 13

Supraspinatus M. innervation

Answer 13

Suprascapular N.

Question 14

Infraspinatus M. attachments

Answer 14

infraspinous fossa to greater humeral tubercle

Question 15

Infraspinatus M. innervation

Answer 15

Suprascapular N.

Question 16

Teres Major M. attachments

Answer 16

posterior aspect of inferior scapular angle to medial side of intertubercular groove

Question 17

Teres Major M. innervation

Answer 17

Inferior subscapular N.

Question 18

Teres Minor M. attachments

Answer 18

lateral border of scapula to greater humeral tubercle

Question 19

Teres Minor M. innervation

Answer 19

Axillary N.

Question 20

Biceps Brachii M. attachments

Answer 20

short head: coracoid process
long head: supraglenoid tubercle of scapula through groove
**both go to the radial tuberosity and bicipital aponeurosis

Question 21

Biceps Brachii M. innervation

Answer 21

Musculocutaneous N.

Question 22

Brachialis M. attachments

Answer 22

distal 1/2 anterior humeral body to coronoid process of ulna and ulnar tuberosity

Question 23

Brachialis M. innervation

Answer 23

Musculocutaneous N.

Question 24

Triceps Brachii M. attachments

Answer 24

long head: infraglenoid tubercle
lateral head: posterior humeral above radial groove
medial head: posterior humeral below radial groove
*** all go to olecranon process of ulna and ante brachial fascia

Question 25

Triceps Brachii M. innervation

Answer 25

Radial N.

Question 26

Anconeus M. attachments

Answer 26

lateral humeral epicondyle to lateral olecranon

Question 27

Anconeus M. innervation

Answer 27

Radial N.