Week 1 - DRY Flashcards

1
Q

Draw and label the circle of Willis

A

Check against diagram in anatomy book, page 98

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2
Q

From which arteries do the left & right vertebral arteries arise?

A

Subclavian

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3
Q

At what vertebral level do the left & right internal carotid arteries arise?

A

C4

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4
Q

How is the basilar artery formed and which part of the brainstem is it most closely related to?

A

Union of L + R vertebral arteries

Pons

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5
Q

Which arteries complete the posterior of the Circle of Willis by linking the internal carotid arteries to the posterior cerebral arteries?

A

Posterior communicating

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6
Q

Which artery completes the anterior of the Circle of Willis by linking the anterior cerebral arteries?

A

Anterior communicating

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7
Q

In which fissure of the brain does the anterior cerebral artery travel?

A

Median Longitudinal Fissure

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8
Q

In which fissure of the brain does the middle cerebral artery travel in?

A

Lateral sulcus

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9
Q

In which fissure of the brain does the posterior cerebral artery travel?

A

Parieto-occipital

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10
Q

Which cerebral artery supplies:

1) Primary motor cortex
2) Primary Sensory Area
3) Primary visual area
4) Primary auditory area
5) Area for olfaction

A

1) Middle
2) Middle
3) Posterior
4) Middle
5) Middle

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11
Q

Which parts of the brain does the vertebro-basilar system supply?

A

Brainstem and cerebellum

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12
Q

Which cranial nerve emerges from just above the superior cerebellar artery?

A

III

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13
Q

Label the main dural venous sinuses of the brain.

A
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14
Q

Into which vein in the neck do these dural venous sinuses drain into?

A

Internal Jugular

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15
Q

Through which foramen in the skull does the IJV pass?

A

Jugular foramen

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16
Q

The opthalmic veins drain into what venous sinus?

A

Cavernous sinus

17
Q

What structures in the skull base is the cavernous sinus closely related to?

A

Pituitary gland

18
Q

Branches from which arteries fuse to form the anterior spinal artery?

A

Vertebral

19
Q

Which arteries are the posterior spinal arteries branches of?

A

Vertebral (correct)

20
Q

What fluid circulates in the subarachnoid space?

A

CSF

21
Q

Which structures does the falx cerebri separate?

A

The cerebral hemispheres

22
Q

To what bony structures does the falx cerebri attach anteriorly?

A

Crista Galli

Frontal crest processes

23
Q

Which dural venous sinus runs within the upper border of the falx cerebri?

A

Superior saggital sinus

24
Q

Which dural venous sinus runs along the lower border of the falx cerebri?

A

Inferior saggital sinus

25
Q

What structures lie on either side of the tentorium cerebelli?

A

https://en.wikipedia.org/wiki/Cerebellar_tentorium

Cerebellum

Cerebrum (inferior aspect of occipital lobe)

26
Q

To what bony points does the anterior edge of the tentorium cerebelli attach to?

A

Clinoid processes of sphenoid

27
Q

Which dural venous sinus runs along the attachment of the falx cerebri to the tentorium?

A

Straight sinus

28
Q

What is the dural fold that separates the two cerebellar hemispheres called?

A

Falx cerebelli

29
Q

What is the fold of dura that surrounds the pituitary stalk called?

A

Diaphragmae sellae

30
Q

Through which foramen in the skull does the middle meningeal artery enter the cranial cavity?

A

Foramen spinosum

31
Q

Which artery is the maxillary artery a terminal branch of and within which glandular structure is it give off?

A

External carotid

Parotid gland

32
Q

What embryological structures are the brain ventricles formed from?

A

Neural tube

33
Q

What name is given to the specialised structures that lie in the ventricles that generate CSF?

A

Choroid plexus

34
Q

How does CSF pass into the subarachnoid space from the 4th ventricle?

A

Median aperture - foramen of Magendie (1)

Lateral apertures - foramen of Luschka (2)

35
Q

How is CSF finally resorbed back into the general circulation?

A

Arachnoid granulations contain small arachnoid villi that re-absorb CSF into the superior saggital sinus

36
Q

On a bony skull cap identify the groove for the superior sagittal sinus. Identify indentations on either side of this groove. What makes these indentations?

A

Arachnoid villi?