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Flashcards in Brain Anatomy Deck (24)
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1

Which lobe is the precentral gyrus part of?

Frontal

2

What lobe is the postcentral gyrus part off?

Parietal

3

Where is Broca's area?

On the inferior frontal gyrus

4

Which hemisphere is Broca's more commonly found in?

The left

5

Which gyri is the auditory complex found on?

Superior temporal gyri

6

What is the function of Broca's area?

Motor aspect of speech - speech associated gestures

7

What does damage to Broca's area do?

Expressive aphasia
- non-fluent and slow speech

8

Where is wernicke's area found?

Within the auditory association cortex

9

What is the function of Wernicke's?

Sensory language areas, lexical processing

10

What cam damage to Wernicke's area cause?

Receptive aphasia
- extremely poor comprehension

11

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

Genu (anterior)
Splenium (posterior)

12

What is the rostrum of the corpus callosum?

The part that projects inferiorly and posteriorly from the Genu

13

Where is CSF made?

Choroid plexus within the ventricular system of the brain

14

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

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

15

What is the function of CSF?

Affords mechanical and immunological protection to the brain and spinal cord

16

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

Interventricular foramen

17

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

Through the aqueduct of midbrain

18

Which structures make up the lentiform nucleus?

Putamen
Globus palidus

19

What are the three borders of the lentiform nucleus?

Claustrum
Anterior limb
Posterior limb

20

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

Corticobulbar axons

21

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

Corticospinal axons

22

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

Anterior cerebral arteries
Middle cerebral arteries
Posterior cerebral arteries

23

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

Anterior - frontal and parietal
Middle - temporal
Posterior - occipital

24

Which eight, fused bones make up the cranial cavity?

Frontal
Occipital
Sphenoid
Ethmoid
2 x parietal
2 x temporal