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Restorative Art > The Ear > Flashcards

The Ear Flashcards

1
Q

Another name for the ear.

A

Pinna

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2
Q

This changes less in a lifetime than any other feature.

A

The ear

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3
Q

To capture and direct sound to the earpassage.

A

Purpose of The Ear

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4
Q

The form of the mass of the ear.

A

Wedge

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5
Q

The form of the outer rim of the ear.

A

Question Mark

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6
Q

The linear form of the anterior border of the ear.

A

Relatively Straight

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7
Q

The ear is composed of this.

A

Cartilage

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8
Q

The exception to the ear being made of cartilage.

A

The Fatty Lobe

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9
Q

As paired features, the ears display the most noticable differences in position and form when compared _________.

A

Together

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10
Q

Why would you still be able to model a missing or damaged ear from a remaining ear?

A
  • The details of both ears can’t be viewed together.
  • Unless there is some perculiarity, present people tend to ignore this features intricacies.
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11
Q

The details of these cannot be viewed together.

A

Both Ears

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12
Q

Unless there is some peculiarity present, people tend to ______ the ears intricacies.

A

Ignore

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13
Q

The width is two thirds the length, with the widest portion usually in the superior third (of the ears length).

A

Proportions of The Ear

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14
Q

Two thirds it’s length.

A

Width of The Ear

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15
Q

The superior third of the ear’s length.

A

Widest Portion of The Ear

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16
Q

These provide greater accuracy than proportions for locating the ear.

A

Anatomical Guides

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17
Q

The opening of the ear passage.

A

External Auditory Meatus

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18
Q

Originates from the skull directly superior to the ear passage.

A

Position of the Zygomatic Arch

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19
Q

Divides the length of the ear.

A

Zygomatic Arch

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20
Q

Lies directly anterior to the ear passage.

A

Mandibular Fossa

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21
Q

Hidden by the tragus.

A

Mandibular Fossa

22
Q

Lies posterior and inferior to the ear passage.

A

Position of The Mastoid Process

23
Q

Hidden by the lob of the ear.

A

Mastoid Process

24
Q
  • External Auditory Meatus
  • Zygomatch arch
  • Mandibular Fossa
  • Mastoid process
A

Anatomical Guides for Locating The Ear

25
Q

The keystone to accurate location of the ear.

  • More accurate than facial proportions.
A

External Auditory Meatus

26
Q

The ear passage aligns with this.

A

The front border of the ear.

27
Q

This lies directly above the ear passage and divides the ear into equal halves.

A

Zygomatic Arch

28
Q
  • Mandibular Fossa- Directly anterior to the ear passage.
  • Mastoid Process- Lies below and behind the ear passage, covered by the lobe.
A

How to locate the ear when the external auditory meatus and zygomatch arch are destroyed.

29
Q

The outer rim of the ear.

A

Helix

30
Q

General shape of the helix.

A

Question Mark

31
Q

Lies within the concha.

  • Crus- lies upon the zygomatic arch
  • Is flattened into the wall of the concha.
  • Divides the length of the ear.
  • Is deeper than the surface of the cheek.
A

Origin of the Helix

32
Q

At the top of the lobe.

  • Exception: Is on a “lobeless” ear where the cartilage continues to the cheek.
A

Termination of the Helix

33
Q

The beginning of the outer rim lying in the concha.

A

Crus of the Helix

34
Q

The inner rim of the ear.

  • Has a greater width than the Helix
A

Antihelix

35
Q

At the superior portion of the lobe.

A

Origin of the Antihelix

36
Q

Where the upper portion bifurcates into two branches (crura).

A

Termination of the Antihelix

37
Q

The bifurcation of the antihelix.

A

Crura

38
Q

The upper branch of the antihelix.

A

Superior Branch of the Crura

39
Q

The measurement of the superior one third of the ear’s lenth.

A

Anterior Branch of the Crura

40
Q

The shallow depression lying between the crura.

A

Triangular Fossa

41
Q
  • Located in the anterior portion of the ear.
  • Extends relatively far behind the helix.
A

Location of the Triangular Fossa

42
Q

The fossa between the inner and outer rims of the ear.

  • Is relatively long.
A

Scapha

43
Q

The shallowest of the depressions.

A

Depth of the Scapha

44
Q

The concave shell of the ear.

  • Creates the middle third of the lenth of the ear.
A

Concha

45
Q

Graduated to the earpassage.

A

Depth of the Concha

46
Q

Behind and above the earpassage.

A

Location of the Concha

47
Q

The small eminence rising from the cheek and protecting the ear passage.

A

Tragus

48
Q
  • A wedge-like mass
  • The inferior end attaches to the lobe.
  • The front border is often indistinct.
    • May be marked by a vertical furrow.
A

Characteristics of the Tragus

49
Q

The small eminence on the upper margin of the lobe.

  • Slightly inferior and posterior to the tragus.
A

Antitragus

50
Q

The hollow between the tragus and antitragus.

A

Intertragic Notch

51
Q

Anteriorly on the upper border of the lobe.

A

Location of the Antitragus

52
Q

The fatty inferior segment of the ear.

  • The lower one third of the ear’s length.
  • Mastoid process is the underlying structure.
A

Lobe

Restorative Art (37 decks)

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