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Anatomy > Head and Neck, Snell > Flashcards

Head and Neck, Snell Flashcards

1
Q

Anterior fontanelle: Shape

A

Diamond

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2
Q

Anterior fontanelle: Closed by

A

18 months

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3
Q

Posterior fontanelle: Shape

A

Triangular

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4
Q

Posterior fontanelle: Closed by

A

End of 1st year of life

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5
Q

Orbital margins: Superior

A

Frontal bone

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6
Q

Orbital margins: Lateral

A

Zygomatic

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7
Q

Orbital margins: Inferior

A

Maxilla

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8
Q

Orbital margins: Medial

A

Processes of maxilla and frontal bone

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9
Q

Within the frontal bone, just above the orbital margins

A

Frontal air sinuses

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10
Q

Facial air sinuses serve as

A

Voice resonators

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11
Q

Anterior nasal aperture is formed by

A

1) Nasal bones

2) Maxilla

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12
Q

Nasal septum is largely formed by

A

Vomer

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13
Q

Shelves of bone that project into the nasal cavity

A

Superior and middle conchae

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14
Q

Carries the upper teeth

A

Alveolar arch

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15
Q

Sinuses that communicate with nasal cavity

A

1) Frontal
2) Maxillary
3) Sphenoid

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16
Q

Maxillary sinus: Shape

A

Pyramid

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17
Q

Zygomatic bone, articulations: Medial

A

Maxilla

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18
Q

Zygomatic bone, articulations: Lateral

A

Zygomatic process of temporal bone

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19
Q

Zygomatic bone: Articulates with zygomatic process of temporal bone to form

A

Zygomatic arch

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20
Q

Most common facial fracture

A

Nasal fracture

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21
Q

Fracture of the maxilla usually result from

A

Direct blow to the face

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22
Q

Severe blow to the orbit will cause fracture of

A

Orbital floor

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23
Q

Severe blow to the orbit will cause orbital contents to go into

A

Maxillary sinus

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24
Q

Severe blow to the orbit may damage this nerve

A

Infraorbital nerve

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25
Q

Fracture of the zygoma or zygomatic arch usually results from

A

Blow to the side of face

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26
Q

Frontal bone: Articulates with parietal bone at this suture

A

Coronal suture

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27
Q

Parietal bones: Articulate with each other at

A

Sagittal suture

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28
Q

Parietal bones: Articulate with the occipital bone at

A

Lambdoid suture

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29
Q

Thinnest part to the lateral wall of skull

A

Pterion

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30
Q

Where the anteroinferior part of the parietal bone articulates with the greater wing of the sphenoid

A

Pterion

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31
Q

Pterion overlies what vessels

A

Anterior division of middle meningeal artery and vein

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32
Q

Fossae on the base of the skull

A

Anterior, middle, posterior

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33
Q

Anterior cranial fossa: Separated from middle cranial fossa by

A

Lesser wing of sphenoid

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34
Q

Anterior cranial fossa: Lodges

A

Frontal lobes of cerebral hemispheres

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35
Q

Anterior cranial fossa: Cribriform plate of ethmoid transmits

A

Olfactory nerves

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36
Q

Middle cranial fossa: Separated from posterior cranial fossa by

A

Petrous part of temporal bone

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37
Q

Middle cranial fossa: Lateral parts lodge

A

Temporal lobes of cerebral hemispheres

38
Q

Middle cranial fossa: Middle part is raised and formed by

A

Body of sphenoid

39
Q

Middle cranial fossa: In front of the body of sphenoid

A

Sulcus chiasmatis

40
Q

Middle cranial fossa: Sulcus chiasmatis leads to this structure on both sides

A

Optic canal

41
Q

Middle cranial fossa: Optic canal transmits

A

1) Optic nerve

2) Ophthalmic artery

42
Q

Middle cranial fossa: Sella turcica lodges

A

Hypophysis cerebri

43
Q

Middle cranial fossa: Attachment of tentorium cerebelli

A

Posterior clinoid processes

44
Q

Middle cranial fossa: Slitlike opening between the lesser and greater wings of sphenoid

A

Superior orbital fissure

45
Q

Middle cranial fossa: Superior orbital fissure transmits

A

Live Frankly To See Absolutely No Insult

1) Lacrimal
2) Frontal
3) Trochlear
4) Superior ophthalmic
5) Abducent
6) Nasociliary
7) Inferior division of oculomotor

46
Q

Middle cranial fossa: Perforates the greater wing of sphenoid at medial end of superior orbital fissure

A

Foramen rotundum

47
Q

Middle cranial fossa: Foramen rotundum transmits

A

Maxillary division of trigeminal nerve (V2; V1-opthalmic, V3-mandibular)

48
Q

Middle cranial fossa: Perforates the greater wing of sphenoid at posterolateral to foramen rotundum

A

Foramen ovale

49
Q

Middle cranial fossa: Foramen ovale transmits

A

1) Mandibular division of trigeminal

2) Lesser petrosal nerve

50
Q

Middle cranial fossa: Perforates the greater wing of sphenoid posterolateral to foramen ovale

A

Foramen spinosum

51
Q

Middle cranial fossa: Foramen spinosum transmits

A

Middle meningeal artery

52
Q

Middle cranial fossa: Between apex of petrous part of temporal bone and sphenoid bone

A

Foramen lacerum

53
Q

Middle cranial fossa: Foramen lacerum transmits

A

Internal carotid artery

54
Q

Weakest part of the skull base due to numerous foramina hence commonly fractured

A

Middle cranial fossa

55
Q

Middle cranial fossa: Specific structures particularly vulnerable to fracture

A

1) Cavity of middle ear

2) Sphenoidal air sinuses

56
Q

Posterior cranial fossa: Lodges (3)

A

1) Cerebellum
2) Pons
3) Medulla

57
Q

Posterior cranial fossa: Occupies central area of the floor

A

Foramen magnum

58
Q

Posterior cranial fossa: Foramen magnum transmits (3)

A

1) Medulla oblongata and its meninges
2) Ascending accessory nerves
3) 2 vertebral arteries

59
Q

Posterior cranial fossa: Anterolateral boundary of foramen magnum

A

Hypoglossal canal

60
Q

Posterior cranial fossa: Hypoglossal canal transmits

A

Hypoglossal nerve

61
Q

Posterior cranial fossa: Between petrous temporal bone and condylar part of occipital bone

A

Jugular foramen

62
Q

Posterior cranial fossa: Jugular foramen transmits

A

1) IX
2) X
3) XI
4) Sigmoid sinus

63
Q

Posterior cranial fossa: Sigmoid sinus leaves the skull to become the

A

Internal jugular vein

64
Q

Posterior cranial fossa: Pierces posterior surface of petrous part of temporal bone

A

Internal acoustic meatus

65
Q

Posterior cranial fossa: Internal acoustic meatus transmits

A

1) VI

2) VII

66
Q

Largest and strongest bone of the face

A

Mandible

67
Q

Mandible: Faint ridge at midline of external surface

A

Symphysis menti

68
Q

Mandible: Mental foramen transmits

A

Inferior alveolar nerve

69
Q

Mandible: Medial surface of body

A

Submandibular fossa

70
Q

Mandible: Submandibular fossa lodges

A

Submandibular gland

71
Q

Mandible: Anterior to the submandibular fossa

A

Sublingual fossa

72
Q

Mandible: Sublingual fossa lodges

A

Sublingual gland

73
Q

Mandible: Between the sublingual and submandibular fossa

A

Mylohyoid line

74
Q

Mandible: Alveolar part contains how many sockets

A

16

75
Q

Ramus of mandible: Anterior process

A

Coronoid

76
Q

Ramus of mandible: Posterior process

A

Condyloid process or head

77
Q

Ramus of mandible: Coronoid and condyloid processes are separated by

A

Mandibular notch

78
Q

Mandible: Neck is located

A

Inferior to condyloid process or head

79
Q

Mandible: Medial surface of ramus

A

Mandibular foramen

80
Q

Mandible: Mandibular foramen transmits

A

Inferior alveolar nerve

81
Q

Mandible: Articulates with the temporal bone

A

Condyloid process

82
Q

TMJ, ligaments: Fibers extend downward and backward

A

Lateral temporomandibular ligament

83
Q

TMJ, ligaments: Lateral temporomandibular ligament limits

A

Posterior movement of mandible

84
Q

TMJ, ligaments: Permits gliding movement in the upper part of the joint and hinge movement on the lower part of the joint

A

Articular disc

85
Q

TMJ, muscles: Protrusion

A

Lateral pterygoid muscle

86
Q

TMJ, muscles: Retraction

A

Posterior fibers of temporalis

87
Q

TMJ, muscles: Depression (3)

A

1) Digastric
2) Geniohyoid
3) Mylohyoid

88
Q

TMJ, muscles: Elevation (3)

A

1) Temporalis
2) Masseter
3) Medial pterygoid

89
Q

Muscles of mastication (4)

A

1) Masseter
2) Temporalis
3) Lateral pterygoid
4) Medial pterygoid

90
Q

Muscles of mastication: Innervation

A

Mandibular division of trigeminal

91
Q

Muscles of mastication: Develop from

A

First pharyngeal arch

92
Q

Mandible: Seen below the 2nd premolar tooth

A

Mental foramen

Anatomy (20 decks)

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