Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Neuro > White matter > Flashcards

White matter Flashcards

1
Q

What are the three types of white matter?

A

Commissural fibres,
association fibres and projection fibres.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are names of the four types of commissural fibres?

A

Blue: Corpus callosum,
Purple: Anterior commissural,
Teal: Posterior commissural, &
Green: Hippocampal commissural fibres

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Label the four regions of the corpus callosum (1-4).

A
  1. Genu
  2. Rostrum
  3. Body
  4. Splenium
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Label the four regions of the corpus callosum (1-4).

A
  1. Genu
  2. Rostrum
  3. Body
  4. Splenium
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does the anterior commissure primarily connect?

A

The temporal lobes are connected by the the anterior commissure.
Some fibres to the olfactory centres also travel here.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Label the attached image.

A

A Corpus callosum,
B. Posterior commissure
C. Hippocampal commissure, &
D. Anterior commissure.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What regions of the brain does the commissural fibres connect?

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

List the main association Fibres

A
  1. Superior longditudinal fasiculus
  2. Fronto-occipital fasciculus
  3. Uncinate fasciculus
  4. Arcuate fasiculus
  5. Cingulum bundle
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What regions of the brain does the superior longitudinal fasciculus connect.

A

Frontal, temporal and occipital lobes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What regions of the brain does the fronto-occipital fasiculus connect?

A

The fronto-occipital fasiculus is a deep structure which connects the frontal and temporal lobes to the occipital lobes. It runs just lateral to the caudate nucleus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What regions of the brain does the uncinate fasciculus connect?

A

The uncinate fasciculus connects the inferior portion of the frontal lobe and the superior anterior portion of the temporal lobe. It traverses the bottom of the lateral fissure.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What region of the brain does the arcuate fasciculus connect?

A

The arcuate fasciculus connects Brocas area (Frontal lobe - ) to Wernikies area (Temoral lobe - superior region of the superior temporal gyrus) there for connecting speech production and speech comprehension regions respectively.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What region of the brain does the arcuate fasciculus connect?

A

The arcuate fasciculus connects Brocas area (Frontal lobe - posterior aspect of the inferior frontal gyrus) to Wernikies area (Temporal lobe - superior region of the superior temporal gyrus) there for connecting speech production and speech comprehension regions.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What regions of the brain does the cingulate fasciculus connect?

A

Frontal and parietal lobes > the para-hippocampal & temporal lobes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What regions of the brain does the inferior longitudinal fasciculus connect?

A

The temporal and occipital lobes are connected by the inferior longitudinal fasciculus. It runs below the inferior horn of the lateral ventricle.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The major projection fibres of the brain are collectively called?

A

The internal capsual is the name for the largest collection of projection fibres in the brain.

15
Q

The internal capsule consists of 5 key regions.
List these regions:
Blue -
Green -
Yellow -
Orange -
Purple -

A
16
Q

What does the anterior limb of the internal capsule contain / carry?

A

The anterior limb of the internal capsule contains the
1. Cortico-pontine fibres which connect the frontal lobe and the pons.
2. Thalamo-cortical fibres which connects the sensory nuclei of the thalamus to the frontal cortex.

17
Q

What does the genu of the internal capsule contain / carry?

A

The genu of the internal capsule carries fibres of the motor cranial nerves to control movements of the head and neck. The fibres located here are called corticobulbar fibres.

18
Q

What is carried in the posterior limb of the internal capsule?

A
  1. Corticospinal fibres that connect the cortex to LMN of the spinal cord, are carried in the posterior limb of the internal capsule.
    These fibres control voluntary muscles of the trunk and limbs.
    Arrangement of corticospinal fibres is from anterior (rostral) to posterior (caudal) UL > trunk > LL.
  2. DCML
    Crude touch, vibration & proprioception.
  3. Spinothalamic fibres
    Temperature & pain
  4. Thalamocortical fibres
    Thalamus VPL, VPM and LP nuceli transmit sensory information primarily to the primary and secondary somatosensory cortex.
19
Q

What is carried in the sublentiform region of the internal capsule?

A

Connects the medial geniculate nucleus of the thalamus with the primary auditory cortex of the thalamus.

20
Q

What is carried in the retrolentiform region of the internal capsule?

A

The optic radiation runs in the retrolentiform region of the internal capsule. It connects the primary visual cortex in the occipital lobe to the lateral geniculate nucleus of the thalamus.

Neuro (23 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions