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Anatomy Dissection Guide > Unit 2 > Flashcards

Unit 2 Flashcards

1
Q

study the skull fa real and read about sinuses in dissection guide

A

x

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2
Q

what is the forelock

A

cranial extension of the mane

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3
Q

what are the horn glands

A

sebaceous glands located caudomedial to the base of the horn bud

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4
Q

infraorbital sinus

A

cutaneous pouch rostral to edial canthus of the eye and may be filled with fatty secretions

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5
Q

cutaneous faciei muscle extends from

A

laryngeal region to the commissure of the mouth

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6
Q

parotidoauricularis muscle attachments

A

fascia on the ventral part of the parotid salivary gland to the auricular cartilage of the ear

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7
Q

what is the function of the parotidoauricularis muscle

A

draws the ear ventrally and caudally; involved in laying back the ears

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8
Q

orbicularis oculi muscle attachments

A

medial palpebral ligament to upper and lower eyelids

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9
Q

what is the function of the orbicularis oculi

A

acts as a sphincter to close the palpebral fissure

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10
Q

orbicularis oculi is innervated by

A

auriculopalpebral nerve

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11
Q

orbicularis oris muscle i located

A

within the stroma of the lips

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12
Q

what is the function of the orbicularis oris

A

acts as a sphincter to close the lips

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13
Q

what are the attachments of the zygomaticus m.

A

from the fascia covering the masster muscle to the commissure of the lips and blends with the buccinator muscle

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14
Q

what is the function of the zygomaticus

A

retracts and elevates the angle of the mouth

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15
Q

what are the attachments of the nasolabialis in the horse

A

form the frontal and nasal bones and then divides into 2 braches; dorsal branch goes to upper lip and lateral wing of the nostril; ventral branch courses to the commissure of the lips;

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16
Q

what is the function of the levator nasolabialis muscle

A

upper lip and commissure and dilates the nostril

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17
Q

what are the attachments of the levator nasolabialis muscle in ruminants

A

from the rostral part of the frontal bone and the frontalis msucle (in ox divides into superficial and deep portions that course to nostril and superior lip and to lateral nasal cartilages, incisive bone, and lateral part of the nostril)

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18
Q

what is the function of the levator nasolabialis muscle ni ruminants

A

elevates the upper lip and commissure and dilates the nostril;

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19
Q

in ox, what courses between the two branches of levator nasolabialis

A

the caninus muscle

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20
Q

levator labii superioris muscle attachments in horse

A

junction of the lacrimal, zygomatic, and maxillary bones; upper lip

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21
Q

what is the function of the levator labii superioris muscle

A

elevates the upper lip

22
Q

what are the attachments of the levator labii superioris muscle in rumants

A

facial tuberosity and inserts on the muzzle by way of several tendons

23
Q

what are the attachments of the dilator nares apicalis muscle in the horse

A

between alar cartilages of the nostril

24
Q

what is the function of the dilator nares apicalis muscle

A

dilates the nostrils

25
Q

what are the attachments of the caninus muscle in horses

A

between the two portions of the levator nasolabialis and inserts on the lateral wing of the nostril

26
Q

what is the function of the caninus muscle

A

dilates the nostril

27
Q

what are the attachments of the caninus muscle in ruminants

A

the facial tuberosity and inserts on the lateral portion of the nostril

28
Q

what are the attachments of the depressor labii inferioris in the ruminant

A

maxilla and facial tuberosity to the upper lip and ventral portion of nostril

29
Q

what is the function of the depressor labii inferioris m.

A

retracts the rostral portion of the upper lip and ventrolateral portion of the nostril

30
Q

what are the attachments of the depressor labii inferioris muscle

A

alveolar border of the mandible and inserts on the upper lip

31
Q

what is the function of the depressor labii inferioris muscle

A

depresses and retracts the lower lip

32
Q

what are the attachments of the rostral malaris muscle in the ruminant

A

facial part of the lacrimal bone and inserts on the buccal fascia dorsal to the buccinator muscle

33
Q

what is the function of the rostral malaris muscle

A

raises the caudal part of the cheek

34
Q

what are the attachments of the caudal part of the malarais muscle

A

the masseteric fascia and inserts on the lower eyelid

35
Q

what is the function of the caudal part of the malaris muscle

A

to depress the lower eyelid and widen the palpebral fissure

36
Q

what is the main muscle of the cheek

A

buccinator muscle

37
Q

what are the attachments of the buccinator muscle

A

from the alveolar bone of the mandible to the angle of the mouth

38
Q

what is the function of the buccinator muscle

A

flattens the cheek, pressing the food between the teeth; retracts the angle of the mouth

39
Q

in ruminants, what are the attachments of the frontalis muscle

A

from the base of the horn and intercornual protuberance to the upper eyelid and frontal region

40
Q

what is the function of the frontalis

A

elevates the superior palpebra and medial angle of the eye

41
Q

what passes through the ethmoid foramen

A

vessles and nerves pass through this foramen

42
Q

what passes through the stylomastoid foramen

A

the facial nerve

43
Q

what passes through the tympano-occipital fissure in ruminants

A

cranial nerves IX, X, XI

44
Q

What passes through the optic canal

A

optic nerve

45
Q

what passes through the orbital fissure

A

oculomotor, trochlear, ophthalmic, and abducens nerves

46
Q

what passes through the rostral alar canal

A

the maxillary artery

47
Q

what passes through the foramen lacerum in the horse

A

cranial nerves IX, X, XI

48
Q

In the equine skull, the oval foramen is replaced with the _______

A

oval notch

49
Q

what courses through the oval notch in the horse

A

the mandibular division of the trigeminal nerve

50
Q

what passes through the carotid notch

A

the internal carotid artery

51
Q

in ruminants, what passes through the foramen orbitorotundum

A

oculomotor, trochleaer, ophthalmic, and maxillary division of trigeminal nerve and abducens nerve

Anatomy Dissection Guide (12 decks)

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