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BIO 2300 Unit 2 > Skull > Flashcards

Skull Flashcards

1
Q

Cranial vault that protects brain, houses organs of hearing and balance, and is site of muscle attachment for head and neck.

A

Neurocranium

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2
Q

Domelike roof of neurocranium

A

Calvarium

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3
Q

Lateral view: Anterior bone in skull

A

Frontal bone

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4
Q

Lateral view: Posterior bone in skull

A

Occipital bone

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5
Q

Lateral view: two bones posterior to frontal

A

Parietal bones

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6
Q

Lateral view: Bones inferior to parietal

A

Temporal

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7
Q

Lateral view: Bone anterior to temporal

A

Sphenoid bone

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8
Q

Lateral view: Bone deep and inferior to frontal bone.

A

Ethmoid

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9
Q

Where is the coronal suture?

A

Frontal bone and parietal bones

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10
Q

Where is the lambdoid suture?

A

Parietal bones and occipital bones

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11
Q

Where is the sagittal suture?

A

Right and left parietal bones

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12
Q

Where is the squamous suture?

A

Temporal and bone and parietal bone

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13
Q

What are the membranous interval at the margins of cranial bones in fetal skull?

A

Fontanelles

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14
Q

What is the large membranous interval on top of fetal skull?

A

Anterior fontanelle

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15
Q

What is the membranous interval on back of fetal skull?

A

Posterior fontanelle

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16
Q

What is the membranous interval on side of fetal skull anterior to temporal skull?

A

Sphenoid fontanelle

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17
Q

Anterior view: what is the bone inferior to frontal bone and anterior to nasal septum?

A

Nasal bone

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18
Q

Anterior view: what is the cheekbone called?

A

Zygomatic bone

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19
Q

Anterior view: what is the large bone surrounding nasal and holding teeth?

A

Maxilla bone

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20
Q

Anterior view: what is the bone inferior to maxilla bone?

A

Mandible

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21
Q

Anterior view: bone lateral to nasal and maxillary bone. (Hint: canal for tear ducts)

A

Lacrimal bone

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22
Q

Anterior view: area that houses teeth from maxilla bone

A

Alveolar area

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23
Q

Anterior view: top half of nasal septum

A

Perpendicular plate (of ethmoid)

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24
Q

Anterior view: bottom half of nasal septum

A

Vomer

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25
Perpendicular plate of ethmoid and vomer make up the _____ _____.
Nasal septum
26
Bone at the most medial of the orbital opening. (Revise)
Nasolacrimal canal
27
Hole under eyes on maxilla bone.
Infraorbital foramen
28
Indent at precipice of superior orbital area (revise)
Supraorbital notch/foramen
29
Top half of the boomerang-like hole thru eye socket.
Superior orbital fissure
30
Bottom half of the boomerang-like hole thru eye socket.
Inferior orbital fissure
31
Supraorbital notch/foramen is branch of...
Cranial nerve V1 (supraorbital nerve)
32
Infraorbital foramen is a pathway for the branch of...
Cranial nerve V2 (infraorbital nerve)
33
Inferior orbital fissure is a pathway for the branch of...
Cranial nerve V2 (infraorbital nerve)
34
Nasolacrimal canal is a passage for...
Nasolacrimal duct
35
Superior orbital fissure is a pathway for the branch of...
Cranial nerves III, IV, VI, and V¹
36
Lateral view: What is the top half of sphenoid bone called?
Greater Wing (of sphenoid)
37
Lateral view: what is the thinner, top part of the temporal bone called?
Squamous portion (of temporal)
38
Lateral view: | What is the little hole at bottom of temporal bone?
External acoustic meatus
39
Lateral view: bone anterior to sphenoid bone (cheek)
Zygomatic bone
40
Bump at bottom of occipital bone?
External occipital protuberance
41
_______ process + ______ process = _______ arch
Zygomatic process + temporal process = zygomatic arch
42
Inferior view: roof of mouth (anterior)
Palatine process (of maxilla)
43
Inferior view: roof of mouth (posterior to Palatine process)
Palatine bone
44
Inferior view: crevice for mandible attachment
Mandibular fossa
45
Inferior view: big hole above occipital condyle
Carotid canal
46
Inferior view: smooth joint surface anterior to big hole for brainstem
Occipital condyle
47
Inferior view: 2 plates side by side on each side of vomer
Lateral pterygoid plate and medial pterygoid plate
48
Inferior view: pointing bone medial to mandibular condyle
Styloid process
49
Inferior view: opposite to styloid proccess
Mastoid process
50
Inferior view: inbetween styloid process mastoid process
Stylomastoid foramen
51
Carotid canal is a passage for...
Internal Carotid Artery
52
Stylomastoid foramen is a passage for...
Cranial nerve VII (facial nerve)
53
Occipital condyle articulates with...
First cervical vertebrae
54
Mastoid process is attachment of...
SCM
55
Mandibular fossa articulates with...
Mandible
56
Cribriform plate (of ephmoid bone) is important passage for...
CN I (olfactory nerves)
57
Optic canal is important passage for...
CN II (optic nerves)
58
Superior orbital fissures important passage for...
Cranial nerves III, IV, V¹ and VI
59
Foramen rotundum important passageway for...
CN V2 (maxillary branch of trigeminal N.)
60
Foramen ovale important passageway for...
CN V3 (mandibular branch of trigeminal N.)
61
Foramen spinosum important passageway for...
Middle meningeal vessels
62
Foreman lacerum important passageway for...
NOT true opening. Filled with cartilage when alive.
63
Internal acoustic meatus important passageway for...
CN VIII (vestibulocochlear)
64
Jugular foramen important passageway for...
Internal jugular V., Cranial nerves IX, X, and XI
65
Hypoglossal canal important passageway for...
CN XII (hypoglossal N.)
66
Foramen magnum important passageway for...
Vertebral arteries, spinal cord, CN XI (accessory N.)
67
Crista Galli is...
Attachment site for Falx cerebri
68
Sella turcica (of temporal) does what?
Houses pituitary gland
69
Petrous portion (of temporal) does what?
Protects structures of inner ear.
70
Condylar process does what?
Articulates with mandibular fossa
71
Mental foramen does what?
Is passage for mental nerve and vessels
72
Mandibular foramen does what?
Passage for inferior alveolar nerve (injected with Anesthesia during dental procedures.)
73
What about the neurocranium?
Protects the brain Houses the organs of hearing and balance Site attachment for head and neck muscles Consists of 4 singular bones (frontal, occipital, ethmoid, and sphenoid) And 2 sets of paired bones (parietal and temporal.)
74
What is the domelike "roof" of the neurocranium?
Calvarium
75
What are the 11 openings of the cranial floor?
``` Cribriform plate of the ethmoid bone Optic canal Foramen rotundum Foramen ovale Foramen spinosum Foreman lacerum Carotid canal Internal acoustic meatus Jugular foreman Hypoglossal canal Foramen Magnum ```
76
Cribriform plate is important passage for...
CN I (olfactory nerve)
77
Optic canal is an important passage for...
CN II (optic nerve)
78
Superior orbital fissure is an important passage for...
CN V¹, III, IV, and VI
79
Foramen rotundum is an important passage for...
CN V2 (maxillary branch of the trigeminal N.)
80
Foramen ovale is important passage for...
CN V3 (mandibular branch of trigeminal N.)
81
Foreman spinosum important passage for...
Middle meningeal vessels
82
Foreman lacerum important passage for...
Not a true opening. Covered in cartilage when alive.
83
Internal acoustic meatus important passage for...
CN VIII (vestibulocochlear)
84
Jugular foramen important passage for...
Internal jugular V., Cranial nerves IX X and XI
85
Hypoglossal canal important passage for...
CN XII (hypoglossal N.)
86
Foramen rotundum important passage for...
Vertebral arteries, spinal cord, CN XI
87
Crista Galli important for...
Attachment site for Falx cerebri
88
Sella turcica important for...
Houses pituitary gland
89
Petrous portion (of temporal) important for...
Protecting structures of inner ear
90
What are 6 attributes of the nasal area of skull?
Ethmoid bone. Perpendicular plate of ethmoid. | Superior nasal concha of ethmoid, middle nasal concha of ethmoid, inferior nasal concha (not of ethmoid) and vomer
91
Name 8 features of the mandible.
``` Condylar process Angle of mandible Body Mental foramen Alveolar area Mandibular foramen Coronoid process ```
92
Condylar process does what?
Articulates with mandibular fossa
93
Mental foramen's purpose is what?
Passage for mental nerve and vessels
94
Mandibular foramen purpose is?
Passage for inferior alveolar nerve | Where you're injected with Anesthesia during dental procedures.

BIO 2300 Unit 2 (9 decks)

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