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Positioning II > Anatomy of Facial and Sinuses > Flashcards

Anatomy of Facial and Sinuses Flashcards

1
Q

How many facial bones are there?

A

14

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2
Q

Name the facial bones:

A

R and L nasal
R and L lacrimal
R and L maxillary
R and L zygomatic
R and L palatine
R and L inferior nasal conchae
Vomer
Mandible

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3
Q

Two small, thin bones
Vary in size and shape in individuals
Form superior bony wall of nasal cavity
Commonly called “bridge of nose”

A

Nasal Bones

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4
Q

The two smallest bones in the skull

A

Lacrimal bones

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5
Q

what does the nasal bones articulate with:

A

With each other in midsagittal plane
Superior = frontal bone
Posterosuperior = perpendicular plate of ethmoid bone
On each lateral side = maxillae

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6
Q

Located in anterior part of medial wall of orbits between labyrinth of ethmoid and maxilla

A

lacrimal bones

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7
Q

Each bone contains a lacrimal foramen through which the tear duct passes

A

lacrimal bones

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8
Q

articulations with the lacrimal

A

Articulations :
Frontal
Ethmoid
Maxilla
Inferior nasal concha

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9
Q

each articulates with all other facial bones except for mandible
-also articulates with frontal and ethmoid cranial bones

A

maxillary

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10
Q

which bone does the maxillary bone not articulate with

A

mandible

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11
Q

which cranial bones does the maxillary articulate with

A

frontal and ethmoid

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12
Q

what forms part of lateral walls and most of floor of nasal cavity
Largest immovable bones of face
Form part of floor of orbit

A

Maxillary bones

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13
Q

Form three fourths of roof of mouth

A

maxillary

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14
Q

Have zygomatic process that articulate with zygoma to form part of cheek

A

maxillary

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15
Q

what part of the maxillary bone is this?:
Body contains large, pyramidal cavity =

A

maxillary sinus

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16
Q

what part of the maxillary bone is this?: located under each orbit for passage of infraorbital nerve and artery

A

Infraorbital foramen

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17
Q

what part of the maxillary bone is this?: inferior borders of spongy bone that support roots of teeth

A

Alveolar process =

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18
Q

what part of the maxillary bone is this? : forward, pointed process at their midline junction

A

Anterior nasal spine

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19
Q

makes up the roof of the mouth

A

Maxillary bones

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20
Q

inferior borders of spongy bone that support roots of teeth

A

Alveolar

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21
Q

This bone consists of the acanthion, anterior nasal spine, alveolar process, and the infraorbital foramen

A

maxillary

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22
Q

Form prominence of cheeks

A

Zygomatic Bones

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23
Q

Form part of side wall and floor of orbits

A

Zygomatic Bones

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24
Q

Temporal process extends posteriorly to join zygomatic process of temporal bone

A

Zygomatic Bones

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25
Q

formed by union of temporal process of zygoma and zygomatic process of temporal bone

A

Zygomatic arch

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26
Q

what does the zygomatic bones articulate with

A

Superior = frontal bone
Lateral = zygomatic process of temporal bone
Anterior = maxilla
Posterior = sphenoid

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27
Q

where is the nasal bone located and where is the anterior nasal spine located

A

Nasal spine- frontal bone
Anterior nasal spine- facial bone

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28
Q

Two L-shaped bones composed of vertical and horizontal plates

A

Palatine Bones

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29
Q

Horizontal plates articulate with maxillae to complete the posterior fourth of bony palate (roof of mouth)

A

Palatine Bones

30
Q

Vertical portions extend upward between maxillae and pterygoid processes of sphenoid in posterior nasal cavity

A

Palatine Bones

31
Q

Extend diagonally and inferiorly from lateral walls of nasal cavity at its lower third

A

Inferior Nasal Conchae

32
Q

Long, narrow, very thin bones with a lateral curl
Gives scroll-like appearance

A

Inferior Nasal Conchae

33
Q

Upper two nasal conchae are processes of?

A

ethmoid bone

34
Q

what makes up the nasal septum

A

vomer and perp. plate

35
Q

Thin plate of bone situated in MSP of floor of nasal cavity

A

vomer

36
Q

-articulates with ethmoid
-forms inferior nasal septum

A

Vomer

37
Q

Superior border articulates with body of sphenoid bone

A

Vomer

38
Q

-Superior part of anterior border articulates with perpendicular plate of ethmoid bone

-posterior border is free

A

Vomer

39
Q

what is the mental protuberance

A

the chin
anterior, triangular prominence

40
Q

largest and densest bone of the face

A

Mandible

41
Q

Largest bone of the skull

A

Temporal

42
Q

What part of the mandible is this?:
junction of body and ramus
Also called gonion

A

Angle of the mandible

43
Q

What part of the mandible is this?
two vertical portions on each side of body

A

Rami

44
Q

what part of the mandible is this ?
curved horizontal portion

A

body

45
Q

what part of the mandible is this?
most anterior and central part where left and right halves of mandible fuse

A

symphysis

46
Q

what part of the mandible is this?
superior border of body; consists of spongy bone that supports roots of teeth

A

Alveolar process

47
Q

what part of the mandible is this?
small openings on each side below the second premolar; transmit nerves and blood vessels

A

Mental foramina

48
Q

What does the mandible consist of:

A

mental foramina, alveolar process, symphysis, body, rami, angle of mandible, mental protuberance

49
Q

how many bones make up orbits

A

7

50
Q

name the orbit bones

A

Frontal
Sphenoid
Ethmoid
Maxilla
Zygoma
Lacrimal
Palatine

51
Q

Which facial bones form part of the hard palate

A

Mandible

52
Q

All of the following are part of the bony orbit, except:
Palatine
Zygoma
Lacrimal
Vomer

A

vomer

53
Q

Defined as the air-filled cavities located in the frontal, ethmoid, and sphenoid bones of the cranium, as well as the maxillae of the face

A

Paranasal Sinuses

54
Q

So named because of their formation from the nasal mucosa and their continued communication with the nasal fossae

A

Paranasal sinuses

55
Q

This bone does not articulate with any other bone in the body

A

Hyoid Bone

56
Q

Functions of the paranasal sinuses :

A

Serve as resonating chamber for the voice

Decrease weight of skull

Aid in warming and moisturizing inhaled air

Act as shock absorbers in trauma

Possibly control the immune system

57
Q

What sinus is the last to develop

A

Ethmoid sinuses

58
Q

which sinuses are usually the only ones developed enough to be demonstrated radiographically at birth?

A

Maxillary sinuses

59
Q

at the age of 6 and 7 what sinuses are distinguishable from ethmoids

A

frontal and sphenoid

60
Q

Paired (one in each facial bone)

Vary in size and shape, but are approximately pyramidal in shape

A

maxillary sinuses

61
Q

largest and most symmetric

A

maxillary sinuses

62
Q

Second largest

Paired

Located between vertical plates of frontal bone

Vary greatly in size and shape

Occasionally absent

Rarely symmetric

A

Frontal sinuses

63
Q

Normally paired

Occupy body of sphenoid bone

Often only one sinus develops, but never more than two

Vary in size and shape

Usually asymmetric

Located below sella turcica and extend between dorsum and posterior ethmoids

A

Sphenoid sinuses

64
Q

Located below sella turcica and extend between dorsum and posterior ethmoids

A

sphenoid sinuses

65
Q

Located within lateral masses of labyrinths

A

ethmoid sinuses

66
Q

Composed of varying number of air cells, which are divided into three main groups
Anterior (2 to 8)
Middle (2 to 8)
Posterior (2 to 6)

A

ethmoid sinuses

67
Q

what are the three main groups that the ethmoid sinuses are broken down into

A

anterior, middle, posterior

68
Q

Which paranasal sinuses are divided into three groups?:

A

Ethmoid

69
Q

The only facial bones that contain paranasal sinuses are the:

A

Maxillae

70
Q
A

Positioning II (12 decks)

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