Origin of Muscles of the Thoracic Limb

Question 1

descending pectoral

Answer 1

first sternebra

Question 2

transverse pectoral

Answer 2

first 2-3 sternebrae

Question 3

deep pectoral

Answer 3

ventral sternum and fibrous raphe

Question 4

brachiocephalicus (all parts)

Answer 4

clavicle or clavicular insertion

Question 5

sternocephalicus

Answer 5

first sternebra

Question 6

sternohyoideus

Answer 6

first sternebra and first costal cartilage

Question 7

sternothyroideus

Answer 7

first costal cartilage

Question 8

omotransversarius

Answer 8

distal scapular spine

Question 9

latissimus dorsi

Answer 9

thoracocolumbar fascia; last 7 or 8 thoracic vertebrae

Question 10

trapezius (both parts)

Answer 10

median raphe of the neck; supraspinous ligament

Question 11

rhomboideus capitis

Answer 11

nuchal crest

Question 12

rhomboideus cervicis

Answer 12

median raphe of neck

Question 13

rhomboideus thoracis

Answer 13

spinous processes of T1-T7

Question 14

serratus ventralis cervicis and thoracis

Answer 14

transverse processes of C3-C7; first 7-8 ribs

Question 15

deltoideus scapular part

Answer 15

spine of the scapula

Question 16

deltoideus acromial part

Answer 16

acromial process of the scapula

Question 17

infraspinatus

Answer 17

infraspinous fossa

Question 18

teres minor

Answer 18

infraglenoid tubercle; distal caudal border of scapula

Question 19

supraspinatus

Answer 19

supraspinous fossa

Question 20

subscapularis

Answer 20

subscapular fossa

Question 21

teres major

Answer 21

scapula caudal angle, caudal surface of subscapularis

Question 22

coracobrachialis

Answer 22

coracoid process of scapula

Question 23

tensor fasciae antebrachii

Answer 23

fascia covering lateral side of latissimus dorsi

Question 24

triceps brachii long head

Answer 24

caudal border of scapula

Question 25

triceps brachii lateral head

Answer 25

tricipital line

Question 26

triceps brachii accessory head

Answer 26

neck of humerus

Question 27

triceps brachii medial head

Answer 27

crest of lesser tubercle

Question 28

anconeus

Answer 28

lateral supercondylar crest and lateral and medial epicondyles of the humerus

Question 29

biceps brachii

Answer 29

supraglenoid tubercle

Question 30

brachialis

Answer 30

proximal third of lateral humerus

Question 31

extensor carpi radialis

Answer 31

lateral supercondylar crest of humerus

Question 32

common digital extensor

Answer 32

lateral epicondyle of humerus

Question 33

lateral digital extensor

Answer 33

lateral epicondyle of humerus

Question 34

extensor carpi ulnaris

Answer 34

lateral epicondyle of humerus

Question 35

supinator

Answer 35

lateral epicondyle of humerus

Question 36

abductor digiti I longus (abductor pollicis longus)

Answer 36

lateral border and cranial surface of body of ulna, interosseus membrane

Question 37

pronator teres

Answer 37

medial epicondyle of humerus

Question 38

flexor carpi radialis

Answer 38

medial epicondyle of humerus, medial border of radius

Question 39

superficial digital flexor

Answer 39

medial epicondyle of humerus

Question 40

flexor carpi ulnaris ulnar head

Answer 40

olecranon

Question 41

flexor carpi ulnaris humeral head

Answer 41

medial epicondyle

Question 42

deep digital flexor humeral head

Answer 42

medial epicondyle

Question 43

deep digital flexor radial head

Answer 43

mid third of caudal border of radius

Question 44

deep digital flexor ulnar head

Answer 44

proximal three-fourths of caudal border of ulna

Question 45

pronator quadratus

Answer 45

apposed surfaces of radius and ulna