Anatomy of the skull (bones, features, articulation etc.) Flashcards

1
Q

What are the 22 bones of the skull?

Can you locate this on a picture?

A
  • Nasal
  • Ethmoid
  • Lacrimal
  • Palatine
  • Zygomatic
  • Maxilla
  • Infraorbital canal of the maxilla
  • Mandible
  • Sphenoid bone
  • Middle nasal concha of the ethmoid bone
  • Perpen
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2
Q

What 2 groups of bones is the skull separated into?

A

The NEUROCRANIUM and VISCEROCRANIUM

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3
Q

What is the NEUROCRANIUM?

A

The 8 bones that surround and protect the brain

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4
Q

What is the VISCEROCRANIUM?

A

The 14 bones that make up the face

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5
Q

What bones make up the NEUROCRANIUM?

Can you label this on a diagram?

A
  • Frontal
  • Temporal (x2)
  • Parietal (x2)
  • Sphenoid
  • Ethmoid
  • Occipital
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6
Q

What bones make up the VISCEROCRANIUM?

Can you label this on a diagram?

A
  • Mandible
  • Vomer
  • Nasal (x2)
  • Lacrimal (x2)
  • Zygnomatic (x2)
  • Inferior nasal conchae (x2)
  • Plantine (x2)
  • Maxillae (x2)
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7
Q

What is the middle nasal concha of the ethmoid bone?

A

?

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8
Q

What is the mental foramen?

A

?

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9
Q

What is the inferior nasal concha?

A

?

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10
Q

What is the perpendicular plate of the ethmoid bone?

A

?

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11
Q

What is the infraorbital canal of the maxilla?

A

?

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12
Q

What are the 9 surfaces of the tooth?

A
  • Mesial
  • Distal
  • Buccal
  • Labial
  • Lingual
  • Palatal
  • Occlusal
  • Incisal
  • Cervical
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13
Q

What is the mesial surface of the tooth?

A

Closest to the midline

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14
Q

What is the distal surface of the tooth?

A

Furthest from the midline

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15
Q

What is the buccal surface of the tooth?

A

Surface closest to the cheek (premolars/molars)

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16
Q

What is the labial surface of the tooth?

A

Surface closest to the lips (incisors)

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17
Q

What is the lingual surface of the tooth?

A

Surface closest to the tongue (on all bottom teeth)

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18
Q

What is the occlusal surface of the tooth?

A

Biting edge of the premolars and molars

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19
Q

What is the incisal surface of the tooth?

A

Biting edge of the incisors

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20
Q

What is the cervical surface of the tooth?

A

Edge of the tooth closest to the gingival margin

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21
Q

What are the 3 parts of the tooth?

A

Crown
Neck
Root

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22
Q

What is the enamel of the the tooth?

A

?

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23
Q

What is the dentin of the tooth?

A

?

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24
Q

What is the gingiva?

A

?

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25
Q

What is the pulp cavity of the tooth?

A

?

26
Q

What is the periodontal ligament of the tooth?

A

?

27
Q

What is the root canal?

A

?

28
Q

What is the alveolus?

A

?

29
Q

What is the cementum?

A

?

30
Q

What is the gingival sulcus?

A

?

31
Q

What is the apical foramen?

A

?

32
Q

What is a dental chart?

Describe it

A

A diagrammatic representation of the teeth on paper showing all the surfaces of the teeth

Midline - divides oral cavity into left and right
Upper and lower arches

11-18 (top left)
21-28 (top right)
31-38 (bottom right)
41-48 (bottom left)

33
Q

When charting a patient, how do you look at them?

A

Face on

34
Q

Name and illustrate the parts of the tooth

A
Enamel 
Dentine
Pulpal chamber 
Cement 
Root 
Alveolus 
Periodontal ligament 
Apical foramen 
Gingival sulcus
Gingiva
35
Q

What are the 2 types of dentition?

A

1) Deciduous

2) Permanent

36
Q

What are the differences between dentition?

A

?

37
Q

What does the presence of restoration in a tooth show?

A

A unique picture of the individual

38
Q

Why are xrays useful?

A

Can compare the xrays of a dead individual with his/her antimortem dental records

39
Q

How can dentition be used to identify human remains?

A

Specific patterns of primary and permanent dentition depending on age

40
Q

What is a glabella?

A

Small depression medial to supraorbital ridges and superior to nasal bones (between the eyebrows)

41
Q

What is the gnathion?

A

The most anterior-inferior, mid-sagittal point on the border of the mandible (midpoint of the lower portion of the mandible)

42
Q

What is the gonion?

A

The most, posterior and lateral point of the angle of the mandible (outer point/corner of the jaw)

43
Q

What is the labrale inferious?

A

The point where the inferior vermillion border meets the mid-sagittal (median) plane

44
Q

What is the vermilion border?

Inferior VM?

A

The coloured edge lip

The coloured edge of the LOWER lip

45
Q

What is the mentolabial sulcus?

A

The sulcus between the lower lip and the chin

46
Q

What is the menton?

A

The most posterior-inferior, mid sagittal point of the border of the mandible (lowest point of the median part of the chin)

47
Q

What is the mid-nasal?

A

Mid-point between the superior and inferior of the border of the nasal bone in the median plane

48
Q

What is the mid-philtrum?

A

The mid point between the two vertical grooves under the nose

49
Q

What is the mid-ramus?

A

The mid-point between condyle and the angle (gonion) of the mandible

50
Q

What is the philtrum?

A

The two vertical grooves under the nose

51
Q

What is the mandible?

A

The jaw

52
Q

What is the nasion?

A

The intersection between the frontonasal structure and the median plane (dip between the eyes/above the nose)

53
Q

What is the pogonion?

A

The most projecting point in the mid-sagittal plane of the chin

54
Q

What is the prosthion?

A

The most anterior point on the maxiallary alveolar process in the midsagittal plane

55
Q

What is the alveolar process?

A

The thickened ridge of bone that contains the tooth sockets on the bones that bare teeth

56
Q

What are the bones that bare teeth?

A

The maxillary and the mandible

57
Q

What is the rhinion?

A

The free border of the nasal bone in the mid-sagittal plane

58
Q

What is the subnasale?

A

Point at which the septum and the upper lip merge in the mid-sagittal plane

59
Q

What is the vertex?

A

The meeting point of the 4 cranial bones

60
Q

What are the 4 cranial bones?

A

2 x Parietal
Occipital
Frontal

61
Q

What is the zygion?

A

The most lateral part of the zygomatic arch

62
Q

What is the zygomatic arch?

A

The cheekbones