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**Anatomy > The Skull > Flashcards

The Skull Flashcards

1
Q

What are the bones of the Neurocranium?

A
  1. Frontal Bone
  2. Sphenoid bone (excluding pterygoid process)
  3. Temporal bone (squamous part, petrous part)
  4. Parietal Bone
  5. Occipital bone
  6. Ethmoid bone (cribriform plate)
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2
Q

What are the bones of the Viscerocranium?

A
  1. Nasal bone
  2. lacrimal Bone
  3. Ethmoid bone (Excluding the cribriform plate)
  4. Sphenoid bone (pterygoid process)
  5. Maxilla
  6. Zygomatic bone
  7. Temporal bone (tympanic part, styloid process)
  8. Mandible
  9. Vomer
  10. Inferior Nasal turbinate
  11. Palatine bone
    12 Hyoid bone
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3
Q

What bones contribute to both neurocranium and viscerocranium?

A
  1. Sphenoid bone
  2. Temporal bone
  3. Ethmoid bone
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4
Q

T/F The temporalis muscle originates on the parietal bone?

A

True

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5
Q

What are the 4 major bones of the Calvaria?

A
  1. Frontal
  2. Parietal
  3. Temporal
  4. Occipital
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6
Q

At what age does the frontal suture ossify?

A

Childhood

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7
Q

At what age does the Sagittal suture ossify?

A

20-30 yrs

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8
Q

At what ages does the coronal suture ossify?

A

30-40 yrs

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9
Q

At what age does the lambdoid suture ossify?

A

40-50 yrs

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10
Q

What is Craniosyntosis?

A
  • Premature suture closure

- causes an abnormally chapped vault and potentially serious cognitive defects

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11
Q

What is Microcephaly?

A
  • Premature suture closure

- can cause small cranium and relatively large eyes

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12
Q

What drains through the inferior meatus?

A

Nasolacrimal duct

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13
Q

What drains through the middle meatus?

A
  1. Frontal Sinus
  2. Maxillary Sinus
  3. Anterior ethmoid cells
  4. Middle Ethmoid cells
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14
Q

What drains through the superior meatus?

A

-Posterior ethmoid cells

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15
Q

What drains through the Sphenoid-ethmoid recess?

A

Sphenoid sinus

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16
Q

What 4 bones articulate with Inferior nasal concha when considering it as its own bone?

A
  1. Ethmoid
  2. Maxilla
  3. Lacrimal
  4. Palatine
17
Q

What bones articulate with sphenoid bone?

A
  1. Frontal
  2. Parietal
  3. Ethmoid
  4. Temporal
  5. Zygomatic
  6. Palatine
  7. Vomer
  8. Occipital
18
Q

What is the smallest bone in the face?

A

Lacrimal bone

19
Q

T/F the lacrimal bone communicates with the inferior meatus in the nasal cavity

A

True

20
Q

Describe the lacrimal bone

A
  • 2 bones
  • Smallest bone in the face
  • fragile
  • forms part of anteromedial wall of orbit
  • forms part of anterolateral wall of nasal cavity
  • Foramen: communicates with inferior meatus in nasal cavity

**Anatomy (7 decks)

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