extrinsic muscles

Question 1

trapezius

Answer 1

o: cervical- dorsal midline of neck
thoracic: dorsal midline of thorax
i: spine of scapula
a: elevate thoracic limb, adduct scapula

Question 2

cleidocephalicus

Answer 2

toward head

Question 3

cleidobrachialis

Answer 3

toward humerus

Question 4

clavicular intersection

Answer 4

cranial to humeral joint
where clavical is in other species

Question 5

brachocephalicus

Answer 5

o: clavicle intersection
i: cleidobrachialis- distal body of humerus, ulna in cat
cleidocephalicus m: mastoid process of temporal, c: dorsal midline of neck
a: pull thoracic limb cranially, depress and pull head/ neck laterally

Question 6

omotransversarius

Answer 6

cranial attachment: wing of atlas
caudal attachment: distal spine of scapula
a: pull thoracic limb cranially, depress and pull head/neck laterally

Question 7

lattissimus dorsi

Answer 7

o: thoracolumbar fascia
i: teres major tuberosity
a: pull thoracic limb caudually, flex humeral joint

Question 8

serratus ventralis

Answer 8

o: cervicis- cervical vertebrae
thoracis: thoracic wall
i: serrated face of scapula
a: support and elevate trunk

Question 9

rhomboideus capitus

Answer 9

nuchal crest of occipital bone

Question 10

rhomboideus thoracis

Answer 10

dorsal thorax

Question 11

rhomboideus cervicis

Answer 11

dorsal neck

Question 12

rhomboideus

Answer 12

i: dorsal border of scapula and/or scapular cartilage
a: elevate thoracic limb, extend neck, adduct scapula

Question 13

superficial pectoral

Answer 13

o: cranial part of sternum
i: crest of greater tubercle and cranial humeral border (ulna in cat)
a: adduct thoracic limb

Question 14

deep pectoral

Answer 14

o: sternum and costal cartilages
i: greater and lesser tubercles
a: adduct thoracic limb and pull caudally