Origin/Insertion Mm (Thoracic Limb)

Question 1

Superficial Pectoral

Answer 1

Origin: sternum
Insertion: greater tubercle of humerus

Question 2

Deep Pectoral

Answer 2

Origin: Sternum
Insertion: Humerus

Question 3

Brachiocephalicus

Answer 3

Origin: clavicle
Insertion: distal end of humerus

Question 4

Cleidobrachialis

Answer 4

Origin: clavicle
Insertion: distal end of cranial border of humerus

Question 5

Cleidocephalicus (pars mastoideus & pars cervicalis)

Answer 5

Mastoideus
Origin: clavicle
Insertion: mastoid process of skull

Cervicalis
Origin: clavicle
Insertion: neck

Question 6

Sternocephalicus

Answer 6

Origin: first sternebra (of sternum)
Insertion: mastoid part of skull

Question 7

Sternohyoideus

Answer 7

Origin: first sternebra (of sternum) & first costal cartilage
Insertion: basihyoid bone

Question 8

Sternothyroideus

Answer 8

Origin: first costal cartilage
Insertion: thyroid cartilage

Question 9

Omotransversarius

Answer 9

Origin: distal end of spine of scapula
Insertion: atlas (neck)

Question 10

Trapezius

Answer 10

Origin: median raphe neck & supraspinous ligament from neck/back vertebrae
Insertion: spine of scapula

Question 11

Rhomboideus

Answer 11

Origin: occipital bone (skull), raphe of neck, spinous process of T vertebrae
Insertion: dorsal border scapula

Question 12

Latissimus Dorsi

Answer 12

Origin: thoracolumbar fascia from spinous processes of lumbar/thoracic vertebrae & ribs

Question 13

Serratus Ventralis (cervicis & thoracis)

Answer 13

Origin: transverse process of last cervical vertebrae & ribs
Insertion: serrated face of scapula

Question 14

Deltoideus

Answer 14

Origin: spine & acromial process of scapula
Insertion: deltoid tuberosity

Question 15

Infraspinatus

Answer 15

Origin: infraspinatus fossa
Insertion: greater tubercle of humerus

Question 16

Supraspinatus

Answer 16

Origin: Supraspinatus fossa
Insertion: Greater tubercle of humerus

Question 17

Teres Minor

Answer 17

Origin: infraglenoid tubercle & caudal border of scapula
Insertion: Teres minor tuberosity of humerus

Question 18

Teres Major

Answer 18

Origin: caudal angle scapula & caudal surface subscapularis
Insertion: Teres major tuberosity of humerus

Question 19

Coracobrachialis

Answer 19

Origin: coracoid process of scapula
Insertion: lesser tubercle of humerus

Question 20

Subscapularis

Answer 20

Origin: subscapular fossa
Insertion: lesser tubercle of humerus

Question 21

Triceps Brachii (Long head)

Answer 21

Origin: caudal border scapula
Insertion: olecranon tuber

Question 22

Triceps brachii (Lateral head)

Answer 22

Origin: tricipital line of humerus
Insertion: olecranon tuber

Question 23

Triceps brachii (accessory head)

Answer 23

Origin: neck of humerus
insertion: olecranon tuber

Question 24

Triceps Brachii (medial head)

Answer 24

Origin: lesser tubercle
Insertion: olecranon

Question 25

Anconeus

Answer 25

Origin: supracondylar crest & epicondyles of humerus Insertion: olecranon

Question 26

Biceps Brachii

Answer 26

Origin: supraglenoid tubercle Insertion: ulnar / radial tuberosities

Question 27

Brachialis

Answer 27

Origin: proximal / lateral surface of humerus Insertion: ulnar / radial tuberosities

Question 28

Brachioradialis

Answer 28

Origin: lateral supracondylar crest of humerus Insertion: distal end of radius

Question 29

Extensor Carpi Radialis

Answer 29

Origin: lateral supracondylar crest Insertion: small tuberosities on dorsal surfaces of base of metacarpal II & II

Question 30

Common Digital Extensor

Answer 30

Origin: lateral epicondyle of humerus Insertion: extensor processes of distal phalanges digits II-V

Question 31

Lateral Digital Extensor

Answer 31

Origin: Lateral epicondyle of humerus Insertion: phalanges of digits 3-5

Question 32

Extensor Carpi Ulnaris

Answer 32

Origin: lateral epicondyle of humerus Insertion: lateral aspect of metacarpal 5 & accessory carpal bone

Question 33

Supinator

Answer 33

Origin: lateral epicondyle of humerus Insertion: cranial surface of proximal radius

Question 34

Abductor Pollicis Longus

Answer 34

Origin: Lateral border & cranial surface of ulna body; interosseous membrane Insertion: metacarpal I

Question 35

Pronator Teres

Answer 35

Origin: medial epicondyle of humerus Insertion: medial border of radius

Question 36

Flexor Carpi Radialis

Answer 36

Origin: medial epicondyle of humerus & medial border of radius Insertion: palmar side metacarpals 2-3

Question 37

Superficial Digital Flexor

Answer 37

Origin: medial epicondyle of humerus Insertion: palmar surface of middle phalanges of digits 2-5

Question 38

Flexor Carpi Ulnaris (ulnar head)

Answer 38

Origin: caudal border of olecranon Insertion: accessory carpal bone

Question 39

Flexor Carpi Ulnaris (humeral head)

Answer 39

Origin: medial epicondyle of humerus Insertion: accessory carpal bone

Question 40

Deep Digital Flexor (humeral head)

Answer 40

Origin: medial epicondyle of humerus Insertion: flexor tubercle of distal phalanx (all digits)

Question 41

Deep Digital Flexor (radial head)

Answer 41

Origin: medial border of radius Insertion: flexor tubercle of distal phalanx (all digits)

Question 42

Deep Digital Flexor (ulnar head)

Answer 42

Origin: caudal border of ulna Insertion: flexor tubercle of distal phalanx (all digits)