Upper Extremity

Question 1

Subscapularis

Answer 1

(1) Medially rotates arm

Question 2

Supraspinatus

Answer 2

(2) Abducts arm, stabilizes shoulder joint

Question 3

Infraspinatus

Answer 3

(4) Laterally rotates arm

Question 4

Teres Minor

Answer 4

(5) Extends, adducts, & laterally rotates arm

Question 5

Teres Major

Answer 5

(6) Extends, adducts, & medially rotates arm;

Question 6

Deltoid

Answer 6

(3) Deltoid muscle is common site for for IM injections

Question 7

Triceps Brachii

Answer 7

(12) Extends and adducts arm, extends forearm

Question 8

Biceps Brachii

Answer 8

(9) Flexes arm & forearm; supinates hand

Question 9

Brachialis

Answer 9

(11) Flexes forearm

Question 10

Brachioradialis

Answer 10

(13) Flexes forearm

Question 11

Extensor Carpi Radialis Longus

Answer 11

(14) Extends & abducts hand; damage to extersor muscles of the forearm = “tennis elbow”

Question 12

Extensor Carpi Radialis Brevis

Answer 12

(15) Extends & abducts hand; damage to extersor muscles of the forearm = “tennis elbow”

Question 13

Flexor Carpi Ulnaris

Answer 13

(19) Extends & adducts hand

Question 14

Extensor Digitorum

Answer 14

(24) Extends fingers & hand