Thoracic Limb Attachments

Question 1

CUTANEUS TRUNCI M.

Answer 1

Superficial fascia of the trunk and skin

Question 2

SUPERFICIAL PECTORAL M.

Answer 2

Cranial sternum (1st-3rd sternebrae)

Proximal cranial humerus (Crest of greater tubercle)

Cat attaches on proximal ulna.

Question 3

DEEP PECTORAL M.

Answer 3

Ventral sternum

Lesser and greater tubercles (of humerus)

Question 4

BRACHIOCEPHALICUS M.

Answer 4

Clavicular intersection

Cranial midline neck and temporal bone (mastoid process).

Cranial, distal humerus

Cat difference: limb attachment on proximal ulna.

Question 4

OMOTRANSVERSARIUS M.

Answer 4

Wing of atlas (C1 vertebra)

Acromion of scapula and scapular spine

Question 5

RHOMBOIDEUS M.

Answer 5

Skull, and dorsal midline – neck to cranial thorax

Dorsal border of scapula

Question 6

TRAPEZIUS M.

Answer 6

Dorsal midline – neck to cranial thorax

Scapular spine

Question 7

LATISSIMUS DORSI M.

Answer 7

Thoracolumbar fascia

Teres major tuberosity (of humerus)

Question 8

SERRATUS VENTRALIS M.

Answer 8

Cervical vertebrae and ribs

Serrated face of scapula

Question 9

STERNOCEPHALICUS M.

Answer 9

1st sternebra (aka manubrium)

Occipital bone and mastoid process of temporal bone

Question 9

STERNOHYOIDEUS M.

Answer 9

1st sternebra & 1st costal cartilage

Hyoid apparatus

Question 9

STERNOTHYROIDEUS M.

Answer 9

1st costal cartilage

Thyroid cartilage of larynx

Question 10

SUPRASPINATUS M.

Answer 10

Supraspinous fossa

Greater and lesser tubercle (of humerus) – species variation

Question 10

INFRASPINATUS M.

Answer 10

Infraspinous fossa

Greater tubercle (of humerus) – lateral aspect

Question 10

Infraspinatus m. bursa

Answer 10

Deep to superficial tendon of m. ie it is a subtendinous bursa

Question 11

SUBSCAPULARIS M.

Answer 11

Subscapular fossa

Lesser tubercle (of humerus)

Question 12

DELTOIDEUS M.

Answer 12

Scapula (acromion and spine) – species variation.

Deltoid tuberosity (of humerus)

Question 13

TERES MINOR M.

Answer 13

Caudal border of scapula (distal)

Teres minor tuberosity of humerus

Question 13

TERES MAJOR M.

Answer 13

Caudal border of scapula (proximal)

Teres major tuberosity (of humerus)

Question 14

TENSOR FASCIAE ANTEBRACHII M.

Answer 14

Fascia covering latissimus dorsi m.

Olecranon of ulna

Question 15

TRICEPS BRACHII M. (LONG HEAD)

Answer 15

Caudal border of scapula

Olecranon of ulna

Question 16

TRICEPS BRACHII M. (LATERAL HEAD)

Answer 16

Proximal lateral humerus

Olecranon of ulna

Question 17

TRICEPS BRACHII M. (ACCESSORY HEAD)

Answer 17

Neck of the humerus

Olecranon of ulna

Question 18

TRICEPS BRACHII M. (MEDIAL HEAD)

Answer 18

Proximal medial humerus

Olecranon of ulna

Question 18

BICEPS BRACHII M.

Answer 18

Supraglenoid tubercle Ulnar and radial tuberosities – species variation

Question 19

BRACHIALIS M.

Answer 19

Proximal lateral humerus Ulnar and radial tuberosities – species variation

Question 20

EXTENSOR CARPI RADIALIS M.

Answer 20

Lateral supracondylar crest of the humerus Dorsal base of metacarpal(s) – species variation

Question 21

COMMON DIGITAL EXTENSOR M.

Answer 21

Lateral epicondyle of the humerus Extensor process of the distal phalanges – species variation.

Question 22

LATERAL DIGITAL EXTENSOR M.

Answer 22

Lateral epicondyle of the humerus – carnivores Proximal radius and ulna – ungulates Dorsal base (ie proximal end) of phalanges – species variation

Question 23

ABDUCTOR DIGITI I LONGUS M.(ABDUCTOR POLLICIS LONGUS)

Answer 23

Craniolateral ulna Base of medial metacarpus – species variation

Question 24

ULNARIS LATERALIS M.

Answer 24

Lateral epicondyle of the humerus Base of lateral metacarpus – species variation

Question 25

FLEXOR CARPI RADIALIS M.

Answer 25

Medial epicondyle of the humerus and medial radius Palmar base of metacarpals – species variation

Question 26

SUPERFICIAL DIGITAL FLEXOR M.

Answer 26

Medial epicondyle of the humerus Palmar base of middle phalanges (plus proximal phalanx in horse) Note, two bellies in ruminant.

Question 27

DEEP DIGITAL FLEXOR M. (Humeral, Ulnar, Radial heads)

Answer 27

Medial epicondyle of the humerus, caudal ulna, medial radius Flexor tubercle of distal phalanges (solar surface in horse)

Question 28

FLEXOR CARPI ULNARIS M. (Humeral and Ulnar heads)

Answer 28

Medial epicondyle of humerus, and olecranon Accessory carpal bone

Question 29

BRACHIORADIALIS M

Answer 29

Lateral distal humerus Distal radius

Question 30

PRONATOR QUADRATUS M.

Answer 30

Apposed surfaces of the radius and ulna

Question 30

SUPINATOR M.

Answer 30

Lateral epicondyle of the humerus Cranial, proximal radius

Question 30

PRONATOR TERES M.

Answer 30

Medial epicondyle of the humerus Medial border of proximal mid radius