CSF and Functional Areas Flashcards

1
Q

What are the 4 lobes of the brain?

A
  1. Frontal
  2. Temporal
  3. Parietal
  4. Occipital
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2
Q

What 2 functional areas are found on the frontal lobe?

A
  1. Primary motor cortex

2. Broca’s area

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3
Q

What functional area is found on the parietal lobe?

A

Primary sensory cortex

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4
Q

What functional area is found on the temporal lobe?

A

Auditory area

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5
Q

What functional area is found on the occipital lobe?

A

Visual area

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6
Q

Where on the frontal lobe is the primary motor cortex found?

A

Pre-central gyrus

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7
Q

What area number is the primary motor cortex?

A

Area 4

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8
Q

Where on the frontal lobe is Broca’s area found?

A

Inferior frontal gyrus

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9
Q

What is the function of Broca’s area?

A

Motor speech area

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10
Q

What area number is Broca’s area?

A

Area 44, 45

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11
Q

In a left handed person, where is Broca’s area found?

A

Right hemisphere of cerebrum

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12
Q

Where on the parietal lobe is the primary sensory cortex located?

A

Post-central gyrus

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13
Q

What area number is the primary sensory cortex?

A

Area 3, 1, 2

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14
Q

Where on the temporal lobe is the auditory area found?

A

Below the lateral sulcus

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15
Q

What area number is the auditory area?

A

Area 41, 42

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16
Q

Where on the occipital lobe is the visual area found?

A

Occipital pole

17
Q

What area number is the visual area?

A

Area 17, 18, 19

18
Q

What is area number 6?

A

Premotor area

19
Q

What is the function of the premotor area?

A

Co-ordination of movement

20
Q

What is the function of the cingulate lobe found on the medial aspect of the brain?

A

Emotion

21
Q

What are ventricles found in the brain?

A

Spaces in the brain filled with CSF

22
Q

Where is the majority of CSF produced?

A

Lateral ventricles

23
Q

Describe the flow of CSF from the two lateral ventricles to the fourth ventricle

A
  1. Passed through interventricular foramina of Monro
  2. Into third ventricle
  3. Through cerebral aqueduct of Sylvius to fourth ventricle
  4. Into fourth ventricle
24
Q

How many foramina allow CSF to pass from fourth ventricle to subarachnoid space?

A

3

25
Q

What are the names of the foramina which allow CSF to pass from fourth ventricle to subarachnoid space?

A
  1. Foramen of Magendie

2. Two foramen of Lushcka

26
Q

How is CSF reabsorbed?

A

Arachnoid granulations

27
Q

Where is the CSF reabsorbed to?

A

Venous sinuses

28
Q

Where is the third ventricle found?

A

Cavity of diencephalon

29
Q

Where is the fourth ventricle found?

A

Cavity of the hindbrain

30
Q

What are 4 functions of CSF?

A
  1. Protection from trauma
  2. Supply nutrients
  3. Remove waste products
  4. Suspend brain for lighter weight
31
Q

What produces CSF?

A

Ependymal cells of the choroid plexus

32
Q

Define hydrocephalus

A

An abnormal increase in the volume of CSF within the skull

33
Q

What are 3 things that can cause hydrocephalus?

A
  1. Abnormal increase in the formation of CSF
  2. Blockage of circulation of CSF
  3. Diminished absorption of CSF
34
Q

What are 2 types of hydrocephalus?

A
  1. Internal hydrocephalus

2. External hydrocephalus

35
Q

What causes internal hydrocephalus?

A

Excessive CSF in the ventricles

36
Q

What causes external hydrocephalus?

A

Accumulation of CSF in subarachnoid space

37
Q

How can hydrocephalus be treated?

A

Ventriculoatrial shunt to allow CSF to escape into right atrium of heart

38
Q

What are 3 basal ganglia?

A
  1. Corpus striatum
  2. Amygdaloid nucleus
  3. Claustrum
39
Q

What are the 2 areas of the corpus striatum?

A
  1. Caudate nucleus

2. Lentiform nucleus