HEAD OSTEOLOGY (Bo/Eq) Flashcards

1
Q

What passess through the supraorbital foramen in the bovine?

in the equine?

A

bovine: frontal vein
equine: supraorbital artery and nerve

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2
Q

does a bovine have upper incisors?

A

no

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3
Q

a

A

incisive bone

Bovine

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4
Q

b

A

nasal bone

Bovine

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5
Q

c

A

maxillary bone

Bovine

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6
Q

d

A

frontal bone

Bovine

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7
Q

e

A

lacrimal bone

Bovine

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8
Q

f

A

zygomatic bone

Bovine

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9
Q

g

A

temporal bone

Bovine

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10
Q

h

A

parietal bone

Bovine

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11
Q

i

A

sphenoid bone

Bovine

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12
Q

j

A

palatine bone

Bovine

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13
Q

a (Bovine)

A

basihyoid

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14
Q

b (Bovine)

A

ceratohyoid

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15
Q

c (Bovine)

A

epihyoid bone

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16
Q

d (Bovine)

A

stylohyoid

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17
Q

e (Bovine)

A

thyrohyoid

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18
Q

which of these is much reduced in the equine?

A

epihyoid (c)

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19
Q

identify line at a

A

temporal line

Bovine

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20
Q

depression at b

A

temporal fossa

Bovine

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21
Q

bony structure at c

A

zygomatic process

Bovine

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22
Q

structure d

A

facial tuberosity

Bovine

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23
Q

opening at e

A

infraorbital foramen

Bovine

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24
Q

opening g

A

mental foramina

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25
Q

structure h

A

occipital condyle

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26
Q

structure i

A

paracondylar process

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27
Q

What is the clinical significance of the temporal line in the bovine?

A

Just ventral to it, you can palpate the cornual artery and nerve which is where you would nerve block for dehorning

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28
Q

identify space in blue

A

frontal sinus (caudal portion)

29
Q

identify space in yellow

A

frontal sinus (rostral portion)

30
Q

each sinus in the bo opens into the ?

A

ethmoidal meatus

31
Q

identify the portion of the sinus at A

A

cornual diverticulum

Bovine

32
Q

identify the portion of the sinus at B

A

nuchal diverticulum

Bovine

33
Q

identify the portion of the sinus at C

A

postorbital diverticulum

34
Q

What are the surgical limits of the Bo frontal sinus?

A

Caudal limit: base of skull
Lateral limit: temporal line
Rostral limit: rostral border of orbit

*Avoid the brain!! (x marks the spot from eye to ear)

35
Q

What are the surgical limits of the Bo maxillary sinus?

A

Caudal: rostral border of orbit
Rostral: facial tuberosity
Dorsal: line from medial angle of eye to infraorbital foramen
Ventral: line from zygomatic arch to facial tuberosity

36
Q

The maxillary sinus communicates with the nasal cavity via the ?

A

nasomaxillary opening

37
Q

structure at a

Bovine

A

lacrimal bulla
(continuation of the maxillary sinus caudally into the ventral part of the orbit)

Bovine

38
Q

b

Bovine

A

muscular process

Bovine

39
Q

c

Bovine

A

tympanic bulla

Bovine

40
Q

d

Bovine

A

styloid process

Bovine

41
Q

opening at e

Bovine

A

stylomastoid foramen

Bovine

42
Q

f

Bovine

A

paracondylar process

Bovine

43
Q

g

Bovine

A

occipital condyle

Bovine

44
Q

opening at h

Bovine

A

chonae

Bovine

45
Q

opening a?
what passes through it?

Bovine

A

optic foramen
optic nerve

Bovine

46
Q

opening b?
what passes through it?

Bovine

A

foramen orbitorotundum

oculomotor, trochlear, abducens, and opthalmic and maxillary branches of tigeminal

Bovine

47
Q

opening at c?
what passes through it?

Bovine

A

oval foramen

mandibular branch of trigeminal

Bovine

48
Q

opening at a?

equine

A

ethmoidal foramen

equine

49
Q

opening at b?

equine

A

optic foramen

equine

50
Q

a

equine

A

paracondylar process

equine

50
Q

opening at c?
what passes through it?

equine

A

orbital fissure

oculomotor, trochlear, abducens, and opthalmic branch of trigeminal

equine

51
Q

b

equine

A

styloid process

equine

52
Q

c

equine

A

mastoid process

equine

53
Q

opening at d

equine

A

stylomastoid foramen

equine

54
Q

opening at e

equine

A

foramen lacerum

equine

55
Q

opening at g

equine

A

hypoglossal foramen

equine

56
Q

surgical limits of equine frontal sinus

A

caudal: zygomatic process of frontal bone

rostral: half-way between orbit and infraorbital foramen

medial: 2 cm from midline

lateral: supraorbital foramen to rostral most portion of medial limit

57
Q

the opening between the equine frontal and maxillary sinuses is ?

A

fronto-maxillary opening

58
Q

surgical limits of the equine maxillary sinus

A

caudal: rostal portion of orbit

rostral: rostral end of facial crest/infraorbital foramen

ventral: facial crest

dorsal: line from infraorbital foramen parallel to the facial crest

59
Q

a

A

incisive bone

equine

60
Q

b

A

nasal bone

equine

61
Q

c

A

maxillary bone

equine

62
Q

d

A

frontal bone

equine

63
Q

e

A

lacrimal bone

equine

64
Q

f

A

zygomatic bone

equine

65
Q

g

A

temporal bone

equine

66
Q

h

A

parietal bone

equine

67
Q

i

A

occipital bone

equine

68
Q

j

A

mandible

equine