Brain Anatomy Flashcards

1
Q

Which lobe is the precentral gyrus part of?

A

Frontal

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2
Q

What lobe is the postcentral gyrus part off?

A

Parietal

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3
Q

Where is Broca’s area?

A

On the inferior frontal gyrus

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4
Q

Which hemisphere is Broca’s more commonly found in?

A

The left

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5
Q

Which gyri is the auditory complex found on?

A

Superior temporal gyri

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6
Q

What is the function of Broca’s area?

A

Motor aspect of speech - speech associated gestures

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7
Q

What does damage to Broca’s area do?

A

Expressive aphasia

- non-fluent and slow speech

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8
Q

Where is wernicke’s area found?

A

Within the auditory association cortex

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9
Q

What is the function of Wernicke’s?

A

Sensory language areas, lexical processing

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10
Q

What cam damage to Wernicke’s area cause?

A

Receptive aphasia

- extremely poor comprehension

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11
Q

What are the most anterior and posterior parts of the corpus callosum called?

A

Genu (anterior)

Splenium (posterior)

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12
Q

What is the rostrum of the corpus callosum?

A

The part that projects inferiorly and posteriorly from the Genu

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13
Q

Where is CSF made?

A

Choroid plexus within the ventricular system of the brain

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14
Q

How much CSF is produced per day, and what happens to it when it’s been used?

A

500ml produced per day
140ml circulates through the subarachnoid space
Reabsorbed into the venous drainage system

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15
Q

What is the function of CSF?

A

Affords mechanical and immunological protection to the brain and spinal cord

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16
Q

How does CSF pass from the lateral ventricles to the third ventricle?

A

Interventricular foramen

17
Q

How does CSF pass from the third ventricle to the fourth ventricle?

A

Through the aqueduct of midbrain

18
Q

Which structures make up the lentiform nucleus?

A

Putamen

Globus palidus

19
Q

What are the three borders of the lentiform nucleus?

A

Claustrum
Anterior limb
Posterior limb

20
Q

Which motor axons pass by the Genu of the lentiform nucleus?

A

Corticobulbar axons

21
Q

Which axons pass by the posterior boundary of the lentiform nucleus?

A

Corticospinal axons

22
Q

What are the three main pairs of arteries given off by the circle of Willis?

A

Anterior cerebral arteries
Middle cerebral arteries
Posterior cerebral arteries

23
Q

Roughly what areas of the brain does the anterior, middle and posterior cerebral arteries supply?

A

Anterior - frontal and parietal
Middle - temporal
Posterior - occipital

24
Q

Which eight, fused bones make up the cranial cavity?

A
Frontal
Occipital
Sphenoid 
Ethmoid 
2 x parietal
2 x temporal