Upper Extremity muscles and origins

Question 1

Deltoid (clavicular)

Answer 1

Lateral 1/3 of Clavicle

Question 2

Deltoid (Acromial)

Answer 2

Acromion

Question 3

Deltoid (Scapular)

Answer 3

Scapular Spine

Question 4

Subscapularis

Answer 4

Subscapular Fossa

Question 5

Supraspinatus

Answer 5

Supraspinous Fossa

Question 6

Infraspinatus

Answer 6

Infraspinous Fossa

Question 7

Teres Minor

Answer 7

Lateral Border (scapula)

Question 8

Teres Major

Answer 8

Inferior Angle (Scapula)

Question 9

Pectoralis Major (clavicular)

Answer 9

Medial ½ clavicle

Question 10

Pectoralis Major (Sternocostal)

Answer 10

Sternum, costal cartilage 1-6

Question 11

Pectoralis Minor

Answer 11

Ribs 3-5

Question 12

Subclavius

Answer 12

Rib #1

Question 13

Serratus Anterior

Answer 13

Ribs 1-9

Question 14

Biceps Brachii (long head)

Answer 14

Supraglenoid Tubercle (scapula)

Question 15

Biceps Brachii (short head)

Answer 15

Coracoid Process (scapula)

Question 16

Coracobrachialis

Answer 16

Coracoid Process

Question 17

Brachialis

Answer 17

Anterior Humeral Body

Question 18

Triceps Brachii (Long Head)

Answer 18

Infraglenoid Tubercle

Question 19

Triceps Brachii (Lateral Head)

Answer 19

Posterior humeral body-superior to radial groove

Question 20

Triceps Brachii (Medial Head)

Answer 20

Posterior humeral body-inferior to radial groove

Question 21

Anconeus

Answer 21

Lateral Humeral Epicondyle

Question 22

Pronator Teres

Answer 22

Medial Humeral Epicondyle Coronoid process-Ulna

Question 23

Flexor Carpi Radialis

Answer 23

Medial Humeral Epicondyle

Question 24

Palmaris Longus

Answer 24

Medial Humeral Epicondyle

Question 25

Flexor Carpi Ulnaris

Answer 25

Medial Humeral Epicondyle and olecranon of ulna

Question 26

Flexor Digitorum Superficialis Muscle

Answer 26

Medial Humeral Epicondyle & Coronoid Process of Ulna, Superior ½ of radius.

Question 27

Flexor Digitorum Profundus

Answer 27

Proximal 2/3 of ulna. Interosseous membrane.

Question 28

Flexor Pollicis Longus

Answer 28

Radius (midanterior) & Interosseous Membrane

Question 29

Pronator Quadratus

Answer 29

Distal ¼ Ulna

Question 30

Brachioradialis

Answer 30

Distal Humerus & Lateral Intermuscular Septum

Question 31

Extensor Carpi Radialis Longus

Answer 31

Supracondylar Ridge of Distal Humerus & Intermuscular Septum

Question 32

Extensor Carpi Radialis Brevis

Answer 32

Lateral Epicondyle of humerus

Question 33

Extensor Digitorum

Answer 33

Lateral Epicondyle of humerus

Question 34

Extensor Digiti Minimi

Answer 34

Lateral Epicondyle of humerus

Question 35

Extensor Carpi Ulnaris

Answer 35

Lateral Epicondyle of humerus

Question 36

Supinator

Answer 36

Olecranon, lateral epicondyle of humerus, radial collateral ligament, annular ligament, supinator crest, and supinator fossa both on the ulna

Question 37

Abductor Pollicis Longus

Answer 37

Dorsal surface of the radius and ulna and the interosseous membrane

Question 38

Extensor Pollicis Brevis

Answer 38

Posterior radius and interosseous membrane

Question 39

Extensor Pollicis Longus

Answer 39

Posterior ulna, interosseous membrane

Question 40

Extensor Indicis

Answer 40

Posterior ulna, interosseous membrane

Question 41

Adductor Pollicis (Oblique head)

Answer 41

Capitate bone, and the base of metacarpal bones 2 and 3

Question 42

Adductor Pollicis (trasverse head)

Answer 42

3rd metacarpal bone

Question 43

Abductor Pollicis Brevis

Answer 43

Scaphoid, Trapezium and flexor retinaculum

Question 44

Flexor pollicis Brevis (Superficial head)

Answer 44

Flexor retinaculum

Question 45

Flexor pollicis Brevis (Deep Head)

Answer 45

Capitate and Trapezium

Question 46

Opponens Pollicis

Answer 46

Trapezium

Question 47

Abductor Digiti Minimi

Answer 47

Pisiform

Question 48

Flexor Digiti Minimi

Answer 48

Hook of Hamate and Flexor retinaculum

Question 49

Opponens Digiti Minimi

Answer 49

Hook of Hamate and Flexor retinaculum

Question 50

Lumbricals

Answer 50

1st and 2nd radial side of FDP tendons as unipennate. 3rd & 4th between medial 3 tendons of FDP as bipennate muscles

Question 51

Palmar Interossei

Answer 51

three (or four) muscles, arising from the palmar surface of the shafts of metacarpals 1, 2, 4, & 5 (the 1st palmar interosseous is often fused with the adductor pollicis m.)

Question 52

Dorsal Interossei

Answer 52

four muscles, each arising from two adjacent metacarpal shafts