Head and Neck, Snell Flashcards
(92 cards)
1
Q
Anterior fontanelle: Shape
A
Diamond
2
Q
Anterior fontanelle: Closed by
A
18 months
3
Q
Posterior fontanelle: Shape
A
Triangular
4
Q
Posterior fontanelle: Closed by
A
End of 1st year of life
5
Q
Orbital margins: Superior
A
Frontal bone
6
Q
Orbital margins: Lateral
A
Zygomatic
7
Q
Orbital margins: Inferior
A
Maxilla
8
Q
Orbital margins: Medial
A
Processes of maxilla and frontal bone
9
Q
Within the frontal bone, just above the orbital margins
A
Frontal air sinuses
10
Q
Facial air sinuses serve as
A
Voice resonators
11
Q
Anterior nasal aperture is formed by
A
1) Nasal bones
2) Maxilla
12
Q
Nasal septum is largely formed by
A
Vomer
13
Q
Shelves of bone that project into the nasal cavity
A
Superior and middle conchae
14
Q
Carries the upper teeth
A
Alveolar arch
15
Q
Sinuses that communicate with nasal cavity
A
1) Frontal
2) Maxillary
3) Sphenoid
16
Q
Maxillary sinus: Shape
A
Pyramid
17
Q
Zygomatic bone, articulations: Medial
A
Maxilla
18
Q
Zygomatic bone, articulations: Lateral
A
Zygomatic process of temporal bone
19
Q
Zygomatic bone: Articulates with zygomatic process of temporal bone to form
A
Zygomatic arch
20
Q
Most common facial fracture
A
Nasal fracture
21
Q
Fracture of the maxilla usually result from
A
Direct blow to the face
22
Q
Severe blow to the orbit will cause fracture of
A
Orbital floor
23
Q
Severe blow to the orbit will cause orbital contents to go into
A
Maxillary sinus
24
Q
Severe blow to the orbit may damage this nerve
A
Infraorbital nerve
25
Fracture of the zygoma or zygomatic arch usually results from
Blow to the side of face
26
Frontal bone: Articulates with parietal bone at this suture
Coronal suture
27
Parietal bones: Articulate with each other at
Sagittal suture
28
Parietal bones: Articulate with the occipital bone at
Lambdoid suture
29
Thinnest part to the lateral wall of skull
Pterion
30
Where the anteroinferior part of the parietal bone articulates with the greater wing of the sphenoid
Pterion
31
Pterion overlies what vessels
Anterior division of middle meningeal artery and vein
32
Fossae on the base of the skull
Anterior, middle, posterior
33
Anterior cranial fossa: Separated from middle cranial fossa by
Lesser wing of sphenoid
34
Anterior cranial fossa: Lodges
Frontal lobes of cerebral hemispheres
35
Anterior cranial fossa: Cribriform plate of ethmoid transmits
Olfactory nerves
36
Middle cranial fossa: Separated from posterior cranial fossa by
Petrous part of temporal bone
37
Middle cranial fossa: Lateral parts lodge
Temporal lobes of cerebral hemispheres
38
Middle cranial fossa: Middle part is raised and formed by
Body of sphenoid
39
Middle cranial fossa: In front of the body of sphenoid
Sulcus chiasmatis
40
Middle cranial fossa: Sulcus chiasmatis leads to this structure on both sides
Optic canal
41
Middle cranial fossa: Optic canal transmits
1) Optic nerve
| 2) Ophthalmic artery
42
Middle cranial fossa: Sella turcica lodges
Hypophysis cerebri
43
Middle cranial fossa: Attachment of tentorium cerebelli
Posterior clinoid processes
44
Middle cranial fossa: Slitlike opening between the lesser and greater wings of sphenoid
Superior orbital fissure
45
Middle cranial fossa: Superior orbital fissure transmits
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
Middle cranial fossa: Perforates the greater wing of sphenoid at medial end of superior orbital fissure
Foramen rotundum
47
Middle cranial fossa: Foramen rotundum transmits
Maxillary division of trigeminal nerve (V2; V1-opthalmic, V3-mandibular)
48
Middle cranial fossa: Perforates the greater wing of sphenoid at posterolateral to foramen rotundum
Foramen ovale
49
Middle cranial fossa: Foramen ovale transmits
1) Mandibular division of trigeminal
| 2) Lesser petrosal nerve
50
Middle cranial fossa: Perforates the greater wing of sphenoid posterolateral to foramen ovale
Foramen spinosum
51
Middle cranial fossa: Foramen spinosum transmits
Middle meningeal artery
52
Middle cranial fossa: Between apex of petrous part of temporal bone and sphenoid bone
Foramen lacerum
53
Middle cranial fossa: Foramen lacerum transmits
Internal carotid artery
54
Weakest part of the skull base due to numerous foramina hence commonly fractured
Middle cranial fossa
55
Middle cranial fossa: Specific structures particularly vulnerable to fracture
1) Cavity of middle ear
| 2) Sphenoidal air sinuses
56
Posterior cranial fossa: Lodges (3)
1) Cerebellum
2) Pons
3) Medulla
57
Posterior cranial fossa: Occupies central area of the floor
Foramen magnum
58
Posterior cranial fossa: Foramen magnum transmits (3)
1) Medulla oblongata and its meninges
2) Ascending accessory nerves
3) 2 vertebral arteries
59
Posterior cranial fossa: Anterolateral boundary of foramen magnum
Hypoglossal canal
60
Posterior cranial fossa: Hypoglossal canal transmits
Hypoglossal nerve
61
Posterior cranial fossa: Between petrous temporal bone and condylar part of occipital bone
Jugular foramen
62
Posterior cranial fossa: Jugular foramen transmits
1) IX
2) X
3) XI
4) Sigmoid sinus
63
Posterior cranial fossa: Sigmoid sinus leaves the skull to become the
Internal jugular vein
64
Posterior cranial fossa: Pierces posterior surface of petrous part of temporal bone
Internal acoustic meatus
65
Posterior cranial fossa: Internal acoustic meatus transmits
1) VI
| 2) VII
66
Largest and strongest bone of the face
Mandible
67
Mandible: Faint ridge at midline of external surface
Symphysis menti
68
Mandible: Mental foramen transmits
Inferior alveolar nerve
69
Mandible: Medial surface of body
Submandibular fossa
70
Mandible: Submandibular fossa lodges
Submandibular gland
71
Mandible: Anterior to the submandibular fossa
Sublingual fossa
72
Mandible: Sublingual fossa lodges
Sublingual gland
73
Mandible: Between the sublingual and submandibular fossa
Mylohyoid line
74
Mandible: Alveolar part contains how many sockets
16
75
Ramus of mandible: Anterior process
Coronoid
76
Ramus of mandible: Posterior process
Condyloid process or head
77
Ramus of mandible: Coronoid and condyloid processes are separated by
Mandibular notch
78
Mandible: Neck is located
Inferior to condyloid process or head
79
Mandible: Medial surface of ramus
Mandibular foramen
80
Mandible: Mandibular foramen transmits
Inferior alveolar nerve
81
Mandible: Articulates with the temporal bone
Condyloid process
82
TMJ, ligaments: Fibers extend downward and backward
Lateral temporomandibular ligament
83
TMJ, ligaments: Lateral temporomandibular ligament limits
Posterior movement of mandible
84
TMJ, ligaments: Permits gliding movement in the upper part of the joint and hinge movement on the lower part of the joint
Articular disc
85
TMJ, muscles: Protrusion
Lateral pterygoid muscle
86
TMJ, muscles: Retraction
Posterior fibers of temporalis
87
TMJ, muscles: Depression (3)
1) Digastric
2) Geniohyoid
3) Mylohyoid
88
TMJ, muscles: Elevation (3)
1) Temporalis
2) Masseter
3) Medial pterygoid
89
Muscles of mastication (4)
1) Masseter
2) Temporalis
3) Lateral pterygoid
4) Medial pterygoid
90
Muscles of mastication: Innervation
Mandibular division of trigeminal
91
Muscles of mastication: Develop from
First pharyngeal arch
92
Mandible: Seen below the 2nd premolar tooth
Mental foramen
