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291 anat > SKULL BONES > Flashcards

SKULL BONES Flashcards

1
Q

Location of FRONTAL BONE

A

located at front of skull (“forehead”)

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2
Q

Features of FRONTAL BONE

A
  • Frontal sinuses
  • Coronal Suture
  • Glabella
  • Supraorbital Foramen
  • Supercillary Arches
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3
Q

smooth surface between supraorbital ridges

A

glabella

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4
Q

opening on superior aspect of orbit that transmits supraorbital nerve/artery/vein

A

Supraorbital foramen

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5
Q

bony prominence on supraorbital margin

A

Superciliary Arches

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6
Q

Location of PARIETAL BONES

A

Lateral walls of skull

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7
Q

Features of PARIETAL BONES

A
  • Sagittal Suture
  • Lambdoid Suture
  • Squamous Suture
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8
Q

Location of TEMPORAL BONES

A

lateral walls of skull, inferior to parietal bones

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9
Q

Features of TEMPORAL BONES

A

Internal Acoustic Meatus
External Acoustic Meatus
Petrous Region
Mastoid Process
Styloid Process
Zygomatic Process (+ Zygomatic Arch)
Stylomastoid Foramen

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10
Q

Location of OCCIPITAL BONE

A

posterior region of skull

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11
Q

Features of OCCIPITAL BONE

A

Foramen Magnum
External Occipital Protuberance
Occipital Condyles
Hypoglossal Canal
Jugular Foramen

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12
Q

Location of SPHENOID BONE

A

butterfly-shaped, located internally

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13
Q

Features of SPHENOID BONE

A

Sella Turcica
Sphenoid Sinus
Lesser Wings / Greater Wings
Pterygoid Processes (+ Medial and Lateral Pterygoid Plate)
Superior Orbital Fissures
Optic Canal
Foramen Spinosum
Foramen Rotundum
Foramen Lacerum

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14
Q

Location of ETHMOID BONE

A

Inferior to frontal bone/posterior to nasal bones/anterior to sphenoid bone

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15
Q

Features of ETHMOID BONE

A

Cribriform Foramina
Crista Galli
Ethmoid Air Cells (Sinuses)
Superior Nasal Conchae
Middle Nasal Conchae
Perpendicular Plate

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16
Q

T/F: The INFERIOR NASAL CONCHAE is part of the ETHMOID BONE

A

F - separate bones that do not articulate with ethmoid bone (only Superior nasal conchae are part of ethmoid)

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17
Q

4 Skull Sutures

A

Coronal, Sagittal, Squamous, Lambdoid

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18
Q

Coronal Suture

A

connects frontal and parietal bones

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19
Q

Sagittal Suture

A

connects parietal bones

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20
Q

Squamous Suture

A

connects temporal and parietal bones

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21
Q

Lambdoid Suture

A

connects occipital and parietal bones

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22
Q

8 Major FACIAL BONES

A

Mandible
Maxillae
Lacrimal Bones
Nasal Bones
Vomer
Inferior Nasal Conchae
Palatine Bones
Zygomatic Bones

23
Q

Features of MANDIBLE

A

Mandibular Ramus = Condyloid and Coronoid Processes

24
Q

MANDIBLE

A

lower jaw

25
Q

Condyloid Process

A
  • posterior projection from mandibular ramus
  • articulates with mandibular fossa of temporal bone  form TMJ
26
Q

Coronoid Process

A
  • anterior process from mandibular ramus
  • attachment for temporalis muscle
27
Q

MAXILLAE

A

upper jaw and hard palate

28
Q

Features of MAXILLAE

A

Palatine Processes
Maxillary Sinuses
Inferior Orbital Fissure
Infraorbital Foramen

29
Q

Palatine Processes

A

projection that form hard palate

30
Q

Inferior Orbital Fissure

A
  • large opening along inferior floor of orbit
  • transmits branches of maxillary nerve/artery/vein
31
Q

Infraorbital Foramen

A
  • opening below orbit
  • transmits infraorbital nerves/arteries/veins to face
32
Q

Lacrimal Bones

A
  • small, located in medial part of orbit
  • form part of Nasolacrimal Duct (drains tears)
33
Q

Nasal Bones

A

form bony bridge of nose (where glasses sit)

34
Q

Nasal Bones

A

form bony bridge of nose (where glasses sit)

35
Q

Vomer

A

forms part of nasal septum

36
Q

Inferior Nasal Conchae

A

form part of lateral wall of nasal cavity

37
Q

Palatine Bones

A

form posterior portion of hard palate and posterolateral walls of nasal cavity

38
Q

Zygomatic Bones

A

form cheekbone of skull

39
Q

What is the Nasal Septum formed from?

A

Vomer, Perpendicular Plate of Ethmoid bone, Nasal cartilage

40
Q

hallow spaces within frontal bone

A

Frontal Sinuses

41
Q

transmits nerves for hearing/balance/facial expression

A

Internal Acoustic Meatus

42
Q

passageway for sound waves to reach tympanic membrane (eardrum)

A

External Acoustic Meatus

43
Q

densest portion skull, houses cochlea (hearing) and vestibular apparatus (balance)

A

Petrous Region

44
Q

opening between styloid and mastoid processes, transmits facial nerve

A

Stylomastoid Foramen

45
Q

opening between styloid and mastoid processes, transmits facial nerve

A

Stylomastoid Foramen

46
Q

large opening at base of skull

A

Foramen Magnum

47
Q

articulates with C1 vertebra (atlas) to make atlanto-occipital joint

A

Occipital Condyles

48
Q

located adjacent to occipital condyles, transmits hypoglossal nerve

A

Hypoglossal Canal

49
Q

opening between occipital and temporal bones

A

Jugular Foramen

50
Q

depression that houses pituitary gland

A

Sella Turcica

51
Q

transmits optic nerve and ophthalmic artery

A

Optic Canal

52
Q

transmits maxillary nerve

A

Foramen Rotundum

53
Q

holes that transmit olfactory nerves from nasal cavity into olfactory bulb

A

Cribriform Foramina

291 anat (8 decks)

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