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Macroanatomy > Skull And Sinuses > Flashcards

Skull And Sinuses Flashcards

1
Q

What are the functions of the skull

A

Protect brain
Support teeth and muscles
Respiratory passageways
Supports special sensory organs

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2
Q

What bones make up the neurocranium

A

Frontal
Parietal
Temporal
Occipital
Sphenoid
Ethmoid

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3
Q

What bones enclose the nasal cavity

A

Nasal
Premaxillary
Maxillary
Palatine

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4
Q

What are the conchae of the skull

A

Scroll like bones which project into the internal surface of the nasal cavity

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5
Q

What are the meatuses of the nasal cavity

A

Dorsal middle ventral and common

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6
Q

What is a meatus

A

A passageway

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7
Q

What are the paranasal sinuses

A

Air filled spaces within bones of the skull (frontal and maxilla)

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8
Q

What is a maxillary recess

A

An incompletely enclosed sinus

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9
Q

What do the occipital condyles articulate with

A

The atlas (C1)

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10
Q

What is the ethmoid bone (cribriform plate)

A

Between the brain and nasal cavity, houses sensory neurons

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11
Q

Where is the TMJ

A

Temporal bone

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12
Q

What is the vomer

A

Small thin midline bone that divides the nasal cavity (septum)

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13
Q

What are the air spaces of the skull

A

Conchae
- covered by mucus membranes for warming air upon inhalation

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14
Q

What structure does an NG tube have to pass

A

Common meatus

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15
Q

What are the paranasal sinuses

A

Diverticula of nasal cavity within bones, lines by mucus membrane
- frontal sinus and maxillary sinus

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16
Q

Is the frontal sinus complete or incomplete

A

Complete

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17
Q

Is the maxillary recess complete or incomplete

A

Incomplete

18
Q

What type of teeth do dogs have

A

Diphyodont (two sets)
- deciduous and permanent

Heterodont
- different shapes

Brachydont
- low crowns

19
Q

At what age do deciduous teeth erupt

A

By 6 weeks of age

20
Q

At what age do permanent teeth erupt

A

6 months of age

21
Q

What is the crown of the tooth

A

Area of tooth above the gun line

22
Q

What is the neck of the tooth

A

Transition between crown and root

23
Q

What is the root of the tooth

A

Area below the gumline

24
Q

What is enamel

A

Hard substance of the crown

25
Q

What is dentin

A

The majority of tooth substance

26
Q

What is the pulp cavity of a tooth

A

Space housing nerves

27
Q

What is the cementum of a tooth

A

Outer root surface anchoring tooth in place

28
Q

What is the ligament that holds a root of tooth to the surface

A

Periodontal membrane

29
Q

What are the four types of teeth in a dog

A

Incisors, canines, pre molars and molars

30
Q

What is the dental formula

A

I 3/3
C 1/1
P 4/4
M 2/3

31
Q

What are the carnassial teeth?

A

M1 and p4 shearing teeth

32
Q

What differs between the permanent and deciduous teeth in a dog

A

Baby teeth have only 3 pre molars and no molars

33
Q

How do cat teeth differ from a dog

A

Cats have P 3/2 and only 1 molar

34
Q

What is the direction of lingual surface

A

Towards the tongue

35
Q

What direction is vestibular

A

Towards the lips or cheeks

36
Q

What direction is mesial

A

Towards the 1st incisor

37
Q

What direction is distal in teeth

A

Away from first incisor

38
Q

What direction is occlusal

A

Faces the opposing dental arcade

39
Q

What is the condylar process of the mandible

A

Consists of neck and head
Articulates with the skull

40
Q

What is the ramus of the mandible

A

The caudal wing

Macroanatomy (7 decks)

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