Sarah-Spring-Anatomy-Cervical Structures/muscles Of Head

Front 1

2 veins that drain into external jugular vein

Back 1

maxillary vein

linguofacial vein

Front 2

lymph node found in cervical region (cranial to the shoulder joint and deep to brachiocephalicus and omotransverasius muscles)

Back 2

superficial cervical lymph nodes

Front 3

what is the surgical landmark for access to an enlarged guttural pouch?

Back 3

viborg's triangle

Front 4

T/F: the viborg's trianlge normally extends ventrally to the guttural pouch

Back 4

F

Front 5

boundaries of viborg's triangle

Back 5

linguofacial vein

ramus of the mandible

sternocephalicus (sternomandibularis) tendon

Front 6

2 veins that drain into external jugular vein

Back 6

maxillary vein

linguofacial vein

Front 7

lymph node found in cervical region (cranial to the shoulder joint and deep to brachiocephalicus and omotransverasius muscles)

Back 7

superficial cervical lymph nodes

Front 8

what is the surgical landmark for access to an enlarged guttural pouch?

Back 8

viborg's triangle

Front 9

T/F: the viborg's trianlge normally extends ventrally to the guttural pouch

Back 9

F

Front 10

boundaries of viborg's triangle

Back 10

linguofacial vein(ventral)

ramus of the mandible (rostral)

sternocephalicus (sternomandibularis) tendon (dorsolateral)

Front 11

external jugular vein venipuncture in the horse is commonly performed in which region of the neck?

Back 11

cranial 1/3rd of neck

Front 12

3 reasons why external jugular vein venipuncture in the horse is commonly performed in the cranial 1/3rd of the neck:

Back 12

-not obscured by the cutaneous colli m. in that region
-lateral to common carotid in that region
-omohyoideus may provide protection for the common carotid a. in that region

Front 13

T/F: in the lama, transverse processes of the caudal cervical vertebrae cover the external jugular vein

Back 13

T

Front 14

how is venipuncture of the external jugular vein in lamas performed?

Back 14

in the cranial 3rd of neck ( from a craniodorsal standing position)

Front 15

in there horse, on what side of the body is the esophagus found?

Back 15

toward left side of neck

Front 16

components in carotid sheath of horse

Back 16

common carotid a.
vagosympathetic trunk
tracheal trunk

Front 17

7 cervical structures in horse

Back 17

external jugular vein
esophagus
trachea
carotid sheath
deep cervical ln.
recurrent laryngeal nn.
thymus ( in young animals)

Front 18

T/F: the external jugular vein is absent in horses and small ruminants

Back 18

F! the internal jugular vein is missing

Front 19

carotid sheath components in ruminants:

Back 19

common carotid a.
internal jugular vein ( absent in small ruminants)
vagosympathetic trunk
tracheal trunk

Front 20

is the isthmus of the thyroid gland larger in horses or ruminants?

Back 20

ruminants

Front 21

are the thyroid glands more round in horses or in ruminants?

Back 21

horses

elongated in ruminants

Front 22

on which side of the neck can the esophagus in a horse be palpated(close to the thoracic inlet)?

Back 22

left side!

Front 23

animal that has a cutaneous infraorbital sinus? what is the structure on the skull that houses it called?

Back 23

sheep

external lacrimal fossa

Front 24

animal that has horn glands?

Back 24

goat

Front 25

T/F: facial expression muscles are innervated by CN5

Back 25

F!!!!!

Facial n. (CN 7)

Front 26

T/F: horn glands are more active during the breeding season

Back 26

T

Front 27

what is the facial part of the platysma called?

Back 27

cutaneous faciei muscle

Front 28

muscle that extends from the laryngeal region to the commissure of the mouth

Back 28

cutaneous faciei muscle

Front 29

muscle that extends from the ventral part of the parotid salivary gland to the auricular cartilage of the ear

Back 29

parotidauricularis m.

Front 30

action of parotidauricularis m.

Back 30

draw ears ventrally and caudally
(one of the muscles involved in laying back the ears)

Front 31

muscle that extends from the medial palpebral ligament to the superior and inferior palpebrae

Back 31

orbicularis oculi

Front 32

muscle that acts as a sphincter to close the palpebral fissure

Back 32

orbicularis oculi

Front 33

muscle that is located inside the stroma of the lips (acts as a sphincter to close the lips)

Back 33

orbicularis oris

Front 34

in the horse: muscle that runs from the fascia covering the masseter muscle (masseteris fascia) below the facial crest to the commisure of the lips (blends w/ buccinator m.)

Back 34

zygomaticus m.

Front 35

in ruminants: muscle that runs from the masseteris fascia and the temporal process of the zygomatic bone to the commisure of the lips ( blends w/ buccinator m.)

Back 35

zygomaticus m.

Front 36

muscle that retracts and raises the angle of the mouth

Back 36

zygomaticus m.

Front 37

muscle in the horse that elevates the superior lip and commissure; dilates the nostril

Back 37

levator nasolabialis

Front 38

muscle in horse: originates from the frontal and nasal bones; divides into 2 branches that go to the superior lip and lateral wing of the nostril and commissures of the lips

Back 38

levator nasolabialis

Front 39

muscle in ruminants: originates from the rostral part of the frontal bone and frontalis m. and divides into superficial and deep parts

superficial: to nostril and superior lip
Deep: to lateral nasal cartilages, incisive bone, lateral part of nostril

Back 39

levator nasolabialis

Front 40

action of levator nasolabialis in ruminants

Back 40

elevates the superior lip and dorsolateral portion of the nostril

Front 41

T/F: the levator nasolabialis originates from the frontal and nasal bones in ruminants

Back 41

F: only originates from the frontal bone (and frontalis m.)

T for the horse though!

Front 42

muscle in horse: from lacrimal, zygomatic, and maxillary bones @ their junction to the superior lip, by a common tendon w/ its fellow of the opposite side

Back 42

levator labii superioris

Front 43

from which bones does the lecator labii superioris muscle in horses originate?

Back 43

lacrimal

zygomatic

maxillary

Front 44

muscle besides the levator nasolabialis that elevates the superior lip

Back 44

levator labii superioris

Front 45

in the ruminant: muscle that originates from the facial tuberosity to the central portion of the superior lip by a common tendon w/ its fellow of the opposite side

Back 45

levator labii superioris

Front 46

in the ox, this muscle courses b/w the superficial and deep portions of levator nasolabialis

Back 46

lavator labii superioris

Front 47

muscle that dilates the nostril

Back 47

caninus m.

Front 48

in which animal does the caninus muscle originate from the maxilla and course b/w the 2 branches of the levator nasolabialis

Back 48

horse (b/c in the ruminant it originates from the facial tuberosity and courses b/w the superficial and deep portions of levator nasolabialis m.)

Front 49

T/F: the depressor labii superioris is not present in ruminants

Back 49

F ( it is not present in horses)

Front 50

action of the depressor labii superioris

Back 50

retract the rostral portion of the superior lip and ventrolateral portion of the nostril

Front 51

in ruminants: muscle that runs from the maxilla and facial tuberosity to the superior lip and the ventral portion of the nostril

Back 51

depressor labii superioris

Front 52

muscle that runs from the alveolar border of the mandible to the inferior lIP

Back 52

depressor labii inferioris

Front 53

muscle that depresses and retracts the inferior lip

Back 53

depressor labii inferioris

Front 54

malaris muscle is also referred to as the:

Back 54

depressor palpebrae inferioris

Front 55

muscle that depresses the inferior palpebra

Back 55

malaris

Front 56

in horse: muscle that runs from the fascia rostral to the orbit to the inferior palpebrae

Back 56

malaris

Front 57

which portion of the malaris muscle in the ox elevates the caudal part of the cheek? portion that depresses the inferior palpebra and widens the palpebral fissure

Back 57

rostral portion

causal portion

Front 58

in small ruminants, which portion of the malaris muscle is also called the depressor palpebrae inferioris?

Back 58

caudal portion

Front 59

actions of the buccinator muscle

Back 59

flattens cheeks
(presses food b/w the teeth)
retracts the angle of the mouth

Front 60

muscle that runs from the lateral surface of the maxilla and the alveolar border of the mandible to the angle of the mouth (blends w/ orbicularis oris)

Back 60

buccinator m.

Front 61

muscle that elevates the superior palpebra and medial angle of the eye

Back 61

frontalis m.

Front 62

muscle that runs from the base of the horn and intercornual process to the superior palpebra and frontal region

Back 62

frontalis m.

Front 63

T/F: the frontalis m. is present in horses, carnivores, and ruminants

Back 63

F!! not present in horses! also present in pigs

Front 64

name 5 muscles of mastication

innervation?

Back 64

masster
temporalis
digastricus
medial pterygoideus
lateral pterygoideus

CN5- mandibular br.
(except for caudal belly of digastricus-facial n.)

Front 65

in the ox, you cant palpate the facial a. pulse b/c of which muscle?

Back 65

sternomandibularis

Front 66

T/F: when acting singly, the masseter muscle can pull the mandible toward the side of contraction

Back 66

T

Front 67

muscle that runs from the zygomatic arch and facial crest in horse, zygomatic arch and facial tuberosity in the ruminant, to the lateral surface of the ramus of the mandible (contraction brings the jaws together) has both superficial and deep portions

Back 67

massester m.

Front 68

muscle in horse: from the temporal fossa and the crest surrounding the fossa to the coronoid process of the mandible (raises the mandible)

Back 68

temporalis m.

Front 69

in the ox, which muscle fills the temporal fossa and is entirely lateral in position?

Back 69

temporalis

Front 70

rostral and caudal bellies of which muscle are joined by an intermediate tendon ( caudal belly has an occipitomandibular part)

Back 70

digastricus m.

Front 71

muscle that originates from the paracondylar(jugular) process of the occipital bone (rostral belly inserts on medial surface of the ventral border of the molar part of the body of mandible) (occipitomandibular part inserts on the caudal border of the mandible)

Back 71

digastricus m.

Front 72

muscle that opens the mouth (depressed the mandible)

Back 72

digastricus

Front 73

which muscle is larger in the horse, the lateral or medial pterygoideus?

Back 73

lateral is smaller