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Neuro Exam 1 - JLJ > Skull > Flashcards

Skull Flashcards

1
Q

What are the 8 cranial bones? Which ones are paired? Unpaired?

A

Paired: parietal and temporal

Unpaired: frontal, occipital, sphenoid, and ethmoid

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2
Q

What are the 14 facial bones? Which ones are paired? Unpaired?

A

Paired: zygomatic, lacrimal, nasal, palatine, maxillae, and inferior nasal conchae

Unpaired: vomer and mandible

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3
Q

Where does the falx cerebri attach to and what is its function?

A

Attaches to frontal crest (and crista galli of ethmoid bone) and it is the protective connective tissue for the brain

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4
Q

After brain surgery, what is typically done to facilitate healing?

A

Bone is wired or plated while healing and healing is best when the flap (bone) incorporates the overlaying tissues (skin, muscle, fascia)

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5
Q

Where would you find the coronal suture?

A

Articulation between frontal and both parietal bones

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6
Q

Where would you find the sagittal suture?

A

Articulation between both parietal bones

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7
Q

Where would you find the lambdoid suture?

A

Articulation between parietal and occipital bones

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8
Q

Where would you find the squamous suture?

A

Articulation between temporal and parietal bones

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9
Q

What is the function of the foramen magnum in the occipital bone?

A

Passageway for brainstem and numerous arteries and nerves

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10
Q

What is the function of the superior nuchal line on the occipital bone?

A

Attachment site for muscles of the back and neck

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11
Q

What happens in the skull when nodding your head “yes”?

A

Occipital condyles articulate with the cervical vertebrae

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12
Q

What is the importance of the sella turcica of the sphenoid bone?

A

Pituitary gland sits in this cranial depression

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13
Q

What is the function of the foramen rotundum of the sphenoid bone?

A

Exit point for maxillary branch of CN V (CN V2)

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14
Q

What is the function of the foramen ovale of the sphenoid bone?

A

Exit point for mandibular branch of CN V (CN V3)

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15
Q

What is the function of the foramen spinosum of the sphenoid bone?

A

Exit point for middle meningeal artery

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16
Q

What are some important features of the sphenoid bone?

A

Unites the cranial and facial bones, articulates with almost every bone in the skull, and it contains the sphenoid sinuses

17
Q

What is the function of the crista galli of the ethmoid bone?

A

Attachment site for falx cerebri (also attaches to frontal crest)

18
Q

What is the function of the orbital plate of the ethmoid bone?

A

Forms medial wall of the orbit

19
Q

What is the function of the perpendicular plate of the ethmoid bone?

A

Superior portion of nasal septum

20
Q

What is the importance of the cribiform plate of the ethmoid bone?

A

Olfactory nerve descends along the lateral borders of this plate

21
Q

What is the function of the cribiform foramina of the ethmoid bone?

A

Passageway for olfactory nerve branches

22
Q

What is the function of the orbital surface of the zygomatic bone?

A

Forms lateral wall of the orbit

23
Q

What is the function of the lacrimal bone?

A

Forms part of medial wall of each orbit

24
Q

What is the function of the lacrimal groove of the lacrimal bone?

A

Passageway of nasolacrimal duct

25
Q

What bone(s) form the bridge of the nose?

A

Nasal bone (paired bones that come together)

26
Q

What is the function of the ala of the vomer bone?

A

Articulates with sphenoid bone

27
Q

What is the function of the vertical plate of the vomer bone?

A

Forms inferior portion of nasal septum

28
Q

What is the function of the orbital process of the palatine bone?

A

Part of medial floor of orbit

29
Q

What is the function of the perpendicular plate of the palatine bone?

A

Lateral wall of nasal cavity

30
Q

What is the function of the horizontal plate of the palatine bone?

A

Posterior portion of hard palate

31
Q

What is the function of the palatine process of the maxilla?

A

Posterior portion of hard palate

32
Q

What is the function of the incisive foramen of the maxilla?

A

Separates hard palate from anterior nasal spine

33
Q

What is the function of the alveolar process of the maxilla?

A

Holds teeth of the upper jaw

34
Q

What is the importance of the maxillary sinus of the maxilla?

A

Largest paranasal sinus in the skull

35
Q

What are the primary types of a maxillary fracture?

A

Le Fort I-III

36
Q

What is important about the inferior nasal concha?

A

Considered its own bone, but superior and middle concha are part of the ethmoid bone

37
Q

What makes up the orbital complex?

A

Roof: lesser wing of sphenoid, frontal bone

Medial Wall: frontal process of maxilla, lacrimal bone, lateral mass of ethmoid

Floor of Orbit: perpendicular plate of palatine, orbital surface of maxilla, zygomatic bone

Lateral Wall: zygomatic process of frontal bone, greater wing of sphenoid, orbital surface of zygomatic bone

Neuro Exam 1 - JLJ (17 decks)

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