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Lab 1 Flashcards

(13 cards)

1
Q

Which muscles of facial expression and their intervening aponeurosis contribute to the formation of the scalp?
• ____
• ____

A

frontalis

occipitalis

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2
Q

Which branches of the external and internal carotid arteries anastomose freely in the scalp?

  • ____ a.
  • Supraorbital a.
  • ____ a.
  • Posterior Auricular a.
  • ____ a.

• Anastamose in ____ layer

A

supratrochlear
superficail temporal
occipital

dense CT

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3
Q

In which plane do these blood vessels lie and why do scalp lacerations bleed so profusely?

  • ____
  • Scalp lacerations bleed profusely bc vessels are firmly attached to ____
A

dense CT

dense CT

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4
Q

What role is played by the arachnoid villi in the circulation of CSF?

• Resorb and filter ____ which bathes the CNS - within the ____

A

CSF

superior sagittal sinus

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5
Q

Tentorium Cerebelli

Separates the ____ as it rests in posterior cranial fossa from the overlying occipital bones

A

cerebellum

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6
Q

Tentorial Notch

____ passes through this during life

PATHOLOGY:
Hernia of ____ due to lesions may can important neurological symptoms

A

brainstem

forebrain

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7
Q

Cavernous Sinus Thrombosis will lead
to what clinically significant
consequences?

Cause: ____ spread of ____ from
several superficial regions of the head

A

hematogenous

infection

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8
Q

How could an aneurysm near the lateral aspect of ICA I cause medial strabismus?

  • This area is in close proximity to the ____ n. which would lead to damage of ____
  • ____ gaze paralysis aka ____
A

abducens
abducens nucleus
lateral
cross-eyed

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9
Q

Clivus

Slope b/w ____ and foramen magnum where
- ____
- ____
Rest during life

A

dorsum sella
pons
basilar artery

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10
Q

Internal Auditory Meatus

Region where CN ____ and CN ____ pass thru - facial more superior and courses thru facial canal

A

VII

VIII

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11
Q
Jugular foramen
Foramen through which
- CN \_\_\_\_
- CN \_\_\_\_
- CN \_\_\_\_
Pierce thru at conflence of inferior ends of inferior petrisal and simoid sinuses
A

IX
X
XI

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12
Q

Foramen spinosum

____ from branch of maxillary artery enter cranial cavity through this.

A

middle meningeal arteries

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13
Q

What are the functions and clinical significance of the anastomoses that occur between venous dural sinuses and the internal vertebral venous plexus? (around foramen magnum)

• Possibly having to do with spread of____? ____ plexus is important route for spread of infection/cancer and can also lead to emboli in ____ – these communicate freely with sinuses draining the brain and endocranium

A

infection
vertebral venous
endocranium

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