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Osteology > Quiz 1 - Craniometric points > Flashcards

Quiz 1 - Craniometric points Flashcards

1
Q

Incision

A

the point at the occlusal surface where the upper central incisors meet

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2
Q

Alveolare

A

(infradentale superius) the midline point at the inferior tip of the bony septum between the upper central incisors

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3
Q

Prosthion

A

the midline point at the most anterior point on the alveolar process of the maxillae

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4
Q

Nasospinale

A

the point where a line tangent to the inferiormost points of the two curves of the inferior nasal aperture margin crosses the midline

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5
Q

Rhinion

A

the midline point at the inferior free end of the internasal suture

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6
Q

Nasion

A

the midline point where the two nasal bones and the frontal intersect

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7
Q

Glabella

A

the most anterior midline point on the frontal bone, usually above the frontonasal suture

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8
Q

Metopion

A

instrumentally determined, ectocranial midline point at the frontal where the frontal’s elevation above the chord from nasion to bregma is greatest

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9
Q

Bregma

A

the ectocranial point where the coronal and sagittal sutures intersect

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10
Q

Vertex

A

determined instrumentally when the skull is in Frankfurt Horizontal. It is the highest ectocranial point on the skull’s midline

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11
Q

apex

A

instrumentally determined ectocranial midline point placed where a coronal plane through the right and left portia intersects the midsagittal skull outline

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12
Q

obelion

A

ectocranial midline point where a line connecting the parietal foramina (when present) intersects the midline

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13
Q

Lamdbda

A

the ectocranial midline point where the sagittal and lambdoidal sutures intersect. When in doubt, choose the point where the lateral halves of the lambdoidal suture and lower end of the sagittal suture would be projected to meet.

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14
Q

Opisthocranion

A

instrumentally determined point at the rear of the cranium. It is defined as the midline ectocranial point at the farthest chord length from glabella

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15
Q

inion

A

the ectocranial midline point at the base of the external occipital protuberance. The bony anatomy is highly variable. Normally, inion is defined as the point at which the superior nuchal lines merge in the external occipital protuberance.

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16
Q

Opisthion

A

the midline point at the posterior margin of the foramen magnum

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17
Q

Basion

A

the midline point at the anterior margin of the foramen magnum.

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18
Q

Sphenobasion

A

the point where the midsagittal plane intersects the sphenooccipital suture.

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19
Q

Hormion

A

the most posterior midline point of the vomer

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20
Q

Alveolon

A

the point on the interpalatal suture where a line drawn between the posterior ends of the alveolar ridges crosses the midline

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21
Q

Staphylion

A

the point on the interpalatal suture where a line drawn between the deepest parts of the notches at the rear of the palate crosses the midline

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22
Q

Orale

A

the midline point on the hard palate where a line drawn tangent to the posterior margins of the central incisor alveoli crosses the midline

23
Q

Gnathion

A

the most inferior midline point on the mandible

24
Q

Pogonion

A

the most anterior midline point on the chin of the mandible

25
Q

Infradentale

A

the midline point at the superior tip of the septum between the mandibular central incisors

26
Q

Zygomaxillare

A

the most inferior point on the zygomaticomaxillary suture

27
Q

Alare

A

instrumentally determined as the most lateral point on the margin of the nasal aperture

28
Q

orbitale

A

the lowest point on the orbital margin

29
Q

Zygion

A

instrumentally determined point of maximum lateral extent of the lateral surface of the zygomatic arch

30
Q

Jugale

A

the point in the depth of the notch between the temporal and frontal processes of the zygomatic

31
Q

Ectoconchion

A

instrumentally determined as the most lateral point on the orbital margin

32
Q

Maxillofrontale

A

the point where the anterior lacrimal crest of the maxilla meets the frontomaxillary suture

33
Q

Lacrimale

A

the point where the posterior lacrimal crest meets the frontolacrimal suture

34
Q

Dacryon

A

the point where the lacrimomaxillary suture meets the frontal bone

35
Q

Zygoorbitale

A

the point where the orbital rim intersects the zygomaticomaxillary suture

36
Q

frontomalare orbitale

A

the point where the frontozygomatic suture crosses the inner orbital rim

37
Q

Frontomalare temporale

A

The most laterally positioned point on the fronto-malar suture

38
Q

Frontotemporale

A

the point where the temporal line reaches its most anteromedial position on the frontal

39
Q

Stephanion

A

the point where the coronal suture crosses the temporal line

40
Q

Pterion

A

region, not a point, where the frontal, temporal, parietal, and sphenoid meet on the side of the vault. The sutural contact pattern in this area is highly variable

41
Q

Coronale

A

the point on the coronal suture where the breadth of the frontal bone is greatest

42
Q

Euryon

A

the instrumentally determined ectocranial point of greatest cranial breadth

43
Q

Porion

A

the uppermost point on the margin of the external auditory meatus

44
Q

Auriculare

A

a point vertically above the center of the external auditory meatus at the root of the zygomatic process, a few mm above the porion

45
Q

Asterion

A

the point where the lambdoidal, parietomastoid, and occipitomastoid sutures meet

46
Q

Mastoidale

A

the most inferior point on the mastoid process

47
Q

Ectomolare

A

the most lateral point on the outer surface of the alveolar margins of the maxilla, often at the second molar position

48
Q

Endomolare

A

the most medial point on the inner surface of the alveolar margin opposite the center of the M2 crown

49
Q

Condylion laterale

A

the most lateral point on the mandibular condyle

50
Q

Condylion mediale

A

the most medial point on the mandibular condyle

51
Q

Coronion

A

the point at the tip of the coronoid process of the mandible

52
Q

Gonion

A

the point along the rounded posteroinferior corner of the mandible between the ramus and the body. To determine the point, imagine extending the posterior ramus border and the inferior corpus border to form an obtuse angle. The line bisecting this angle meets the curved gonial edge at gonion

53
Q

Mentale

A

the most inferior point on the margin of the mandibular mental foramen

Osteology (4 decks)

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