Lab 5 - Thoracic limb extrinsic muscles

Question 1

Give the muscular attachments of:

cutaneous trunci

Answer 1

superficial fascia of trunk and skin

Question 2

Give the muscular attachments of:

superficial pectoral

Answer 2

cranial sternum and crest of greater tubercle

Question 3

Give the muscular attachments of:

deep pectoral

Answer 3

ventral sternum and tubercles of the humerus

Question 4

what is different about the superficial pectoral attachment in cats

Answer 4

attaches on the proximal ulna

Question 5

Give the muscular attachments of:

brachiocephalicus

Answer 5

clavicular insertion, mastoid process, cranial/distal humerus

Question 6

what is different about where the brachiocephalicus attaches in cats

Answer 6

proximal ulna

Question 7

Give the muscular attachments of:

Omotransversarius

Answer 7

wing of atlas and acromion/spine of scapula

Question 8

Give the muscular attachments of:

trapezius

Answer 8

dorsal midline
scapular spine

Question 9

Give the muscular attachments of:

rhomboideus

Answer 9

skull/dorsal midline
dorsal border of scapula

Question 10

Give the muscular attachments of:

latissimus dorsi

Answer 10

thoracolumbar fascia
teres major tuberosity

Question 11

Give the muscular attachments of:

serratus ventralis

Answer 11

cervical vertebrae/ribs
serrated face of scapula

Question 12

Give the muscular attachments of:

sternocephalicus

Answer 12

manubrium
occipital bone/mastoid process

Question 13

Give the muscular attachments of:

sternohyoideus

Answer 13

1st sternebra/costal cartilage
hyoid apparatus

Question 14

Give the muscular attachments of:

sternothyroideus

Answer 14

1st costal cartilage
thyroid cartilage

Question 15

Give the muscle action of the:

cutaneus trunci

Answer 15

twitch skin

Question 16

Give the muscle action of the:

superficial pectoral

Answer 16

adduct limb

Question 17

Give the muscle action of the:

deep pectoral

Answer 17

adduct limb

Question 18

Give the muscle action of the:

brachiocephalicus

Answer 18

extend shoulder, head and neck to side

Question 19

Give the muscle action of the:

omotransversarius

Answer 19

advance limb, flex neck laterally (ear to shoulder)

Question 20

Give the muscle action of the:

trapezius

Answer 20

draw sapula dorsally

Question 21

Give the muscle action of the:

rhomboideus

Answer 21

draw scapula dorsally

Question 22

Give the muscle action of the:

latissimus dorsi

Answer 22

flex shoulder joint and draw limb caudally (digging)

Question 23

Give the muscle action of the:

serratus ventralis

Answer 23

support trunk

Question 24

Give the muscle action of the:

sternocephalicus

Answer 24

head and neck to side

Question 25

Give the muscle action of the:

sternohyoideus

Answer 25

pull tongue and larynx caudally

Question 26

Give the muscle action of the:

sternothyroideus

Answer 26

pull tongue and larynx caudally

Question 27

what three muscles are only in the horse

Answer 27

omohyoideus, cutaneous colli, superficial thoracic m.

Question 28

what species is the subclavius in

Answer 28

horse and pig