Muscles (O, I, A) - Page 2

Question 1

Levator Scapulae (O)

Answer 1

transverse processes of first four cervical vertebrae

Question 2

Levator Scapulae (I)

Answer 2

vertebral border of scapula near superior angle

Question 3

Levator Scapulae (A)

Answer 3

elevates scapula

Question 4

Pectoralis Minor (O)

Answer 4

anterior-superior surfaces of ribs 2-4, 2-5, or 3-5 depending on anatomical variation

Question 5

Pectoralis Minor (I)

Answer 5

coracoid process of scapula

Question 6

Pectoralis Minor (A)

Answer 6

depresses/protracts shoulder, rotates scapula

Question 7

Rhomboid Major (O)

Answer 7

spinous processes of superior thoracic vertebrae

Question 8

Rhomboid Major (I)

Answer 8

vertebral border of scapula from spine to inferior angle

Question 9

Rhomboid Major (A)
Rhomboid Minor (A)

Answer 9

adducts scapula and performs downward roation

Question 10

Rhomboid Minor (O)

Answer 10

spinous processes of vertebrae C7-T1

Question 11

Rhomboid Minor (I)

Answer 11

vertebral border of scapula near spine

Question 12

Serratus Anterior (O)

Answer 12

anterior and superior margins of ribs 1-8 or 1-9

Question 13

Serratus Anterior (I)

Answer 13

anterior surface of vertebral border of scapula

Question 14

Serratus Anterior (A)

Answer 14

protracts shoulder/rotates scapula to make upward rotation

Question 15

Trapezius (O)

Answer 15

occipital bone, ligamentum nuchae, spinous process of thoracic vertebrae

Question 16

Trapezius (I)

Answer 16

clavicle and scapula (acromion and scapular spine)

Question 17

Trapezius (A)

Answer 17

may elevate, retract, rotate scapula upward, elevate clavicle or extend neck

Question 18

Deltoid (O)

Answer 18

clavicle and scapula

Question 19

Deltoid (I)

Answer 19

deltoid tuberosity of humerus

Question 20

Deltoid (A)

Answer 20

whole muscle: abduction of shoulder, flexion/extension, rotation

Question 21

Supraspinatus (O)

Answer 21

supraspinous fossa of scapula

Question 22

Supraspinatus (I)

Answer 22

greater tubercle of humerus

Question 23

Supraspinatus (A)

Answer 23

abduction at shoulder

Question 24

Subscapularis (O)

Answer 24

subscapular fossa of scapula

Question 25

Subscapularis (I)

Answer 25

lesser tubercle of humerus

Question 26

Subscapularis (A)

Answer 26

medial rotation at shoulder

Question 27

Teres major (O)

Answer 27

inferior angle of scapula

Question 28

Teres major (I)

Answer 28

passes medially to reach intertubercular groove of humerus

Question 29

Teres major (A)

Answer 29

extension, adduction, medial rotation at shoulder

Question 30

Infraspinatus (O)

Answer 30

infraspinous fossa of scapula

Question 31

Infraspinatus (I)

Answer 31

greater tubercle of humerus

Question 32

Infraspinatus (A)

Answer 32

lateral rotation at shoulder

Question 33

Pectoralis Minor (O)

Answer 33

cartilage of rib 2-6, body of sternum, inferior and medial portion of clavicle

Question 34

Pectoralis Minor (I)

Answer 34

crest of greater tubercle and intertubercular groove of humerus

Question 35

Pectoralis Minor (A)

Answer 35

flexion, adduction, medial rotation at shoulder

Question 36

Latissimus Dorsi (O)

Answer 36

spinous process of inferior thoracic and all lumbar vertebrae

Question 37

Latissimus Dorsi (I)

Answer 37

floor of intertubercular groove of humerus

Question 38

Latissimus Dorsi (A)

Answer 38

extension, adduction, medial rotation at shoulder

Question 39

Biceps Brachii (O)

Answer 39

short head from coracoid, long head from supraglenoid tubercle

Question 40

Latissimus Dorsi (I)

Answer 40

tuberosity of ramus

Question 41

Latissimus Dorsi (A)

Answer 41

flexion at elbow and shoulder; supination

Question 42

Brachialis (O)

Answer 42

anterior, distal surface of humerus

Question 43

Brachialis (I)

Answer 43

tuberosity of ulna

Question 44

Brachialis (A) Brachioradialis (A)

Answer 44

flexion at elbow

Question 45

Brachioradialis (O)

Answer 45

ridge superior to lateral epicondyle or humerus

Question 46

Brachioradialis (I)

Answer 46

lateral aspect of styloid process of radius

Question 47

Triceps Brachii (O)

Answer 47

lateral head-humerus, long head-scapula, medial- humerus to radius

Question 48

Triceps Brachii (I)

Answer 48

olecranon of ulna

Question 49

Triceps Brachii (A)

Answer 49

extension at elbow, extension and adduction at shoulder

Question 50

Flexor Carpi Radialis (O) Palmaris Longus (O)

Answer 50

medial epicondyle of humerus

Question 51

Flexor Carpi Radialis (I)

Answer 51

bases of second and third metacarpal bones

Question 52

Flexor Carpi Radialis (A)

Answer 52

flexion and abduction at wrist

Question 53

Palmaris Longus (I)

Answer 53

palmar aponeurosis and flexor retinaculum

Question 54

Palmaris Longus (A)

Answer 54

flexion at wrist

Question 55

Extensor Carpi Radialis Longus (O)

Answer 55

lateral supracondylar ridge of humerus

Question 56

Extensor Carpi Radialis Longus (I)

Answer 56

base of second metacarpal bone

Question 57

Extensor Carpi Radialis Longus (A)

Answer 57

extension and abduction at wrist