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Brain Power: Anatomy > Gross Topography > Flashcards

Gross Topography Flashcards

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The Brain flashcards
1
Q

What is the average weight of the human brain?

A

1400g

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2
Q

What are the areas where the 2 layers of dura are NOT adherent to each other?

A

Dural venous sinuses

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3
Q

What are the 3 major reflections of the dura mater?

A
  1. Falx cerebri
  2. Tentorium cerebelli
  3. Falx cerebelli
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4
Q

What are the two veins that form the internal cerebral vein?

What are the two veins that unite to form the Vein of Galen?

What two veins unite to form the Straight Sinus?

A
  1. Terminal vein (Thalamostriate v.)
  2. Septal v.
  3. Internal cerebral vein
  4. Basal vein of Rosenthal
  5. Vein of Galen
  6. Inferior sagittal sinus
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5
Q

What venous sinus

  1. Extends between the clivus and the petrous bone
  2. Lies in the dura at the anterior borders of the tentorium cerebelli
  3. Lies on each side of the sphenoid sinus, sella and pituitary gland
A
  1. Inferior petrosal sinus
  2. Superior petrosal sinus
  3. Cavernous sinus
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6
Q

Which frontal gyrus

  1. Frontal eye fields
  2. Broca’s area
A
  1. Middle frontal gyrus

2. Inferior frontal gyrus: triangular gyrus and adjacent opercular gyrus

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7
Q

What are the inferior parietal lobes divided into?

A

Supramarginal gyrus that caps the end of the lateral sylvian fissure
Angular gyrus that caps of the end of the superior temporal sulcus

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8
Q

Which temporal gyrus contains the Wernicke’s area and transverse temporal gyri of Heschl?

A

Superior temporal gyrus On its dorsal bank contains the TGH. Behind the TGH is the wenicke’s area

The TGH is more anterior to the Wernicke’s

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9
Q

What are the 4 parts of the corpus callosum?

A

Head (Rostrum), Genu, Body, Splenium,

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10
Q

On the medial side– above the cingulate gyrus what structure is formed by the medial extensions of the precentral and postcentral gyri?

A

Paracentral lobule

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11
Q

What physical and functional structures straddle the calcarine sulcus of the medial occipital lobe?

A

Superior dorsal cuneus gyrus
Ventral lingual gyrus

The visual cortex straddles the CS on both sides

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12
Q

What is the C-shaped structure that is immediately in the inferior border of the septum pellucidum?

A

Fornix– connects the hippocampi and the diencephalon

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13
Q

What is at the anterior extent of the fornix? A structure that plays a role interhemispheric transfer of visual information?

A

Anterior commissure
Anterior limb for olfaction
Posterior limb for visual and auditory functions

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14
Q

What constitutes the epithalamus?

A
  1. Stria medullaris thalami
  2. Habenular nuclei
  3. Pineal gland
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15
Q

The collateral sulcus separates which two gyri?

A

Superior: Parahippocampal gyri
Inferior: Fusiform gyri or the occipitotemporal gyri

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16
Q

What 5 parts of the limbic lobe are in the medial surface of the brain?

A 
Cingulate gyrus
Subcallosal gyrus
Parahippocampal gyrus
Uncus
Fusiform gyrus
17
Q

Identify the components

  1. Corpus striatum
  2. Striatum
  3. Lenticular nucleus
A
  1. Corpus striatum: Caudate, Putamen, Globus pallidus
  2. Striatum: Caudate putamen
  3. Lenticular nucleus: Putamena and globus
18
Q

What gyri are on the sides of the olfactory bulb and tracts?

What structure whre blood vessels pass is at the caudal end of the tracts?

A

Gyrus rectus medially and orbital gyrus laterally

Anterior perforated substance

19
Q

CN3 arises between?

A

Posterior communicating artery

Superior cerebellar artery

20
Q

What are CN that arise paramedian?

A

CN4
CN6
CN12

21
Q

What separates the thalamus to the basal ganglia?

What connects it?

A

Posterior limb of the internal capsule

Ansa lenticularis

22
Q

What is the proper order from superior to inferior?

Paracentral lobule
Cingulate gyrus
Corpus callosum
Subcallosal gyrus (anterior to septum pellucidum)
Septum pellucidum
Fornix
Stria medullaris thalami
Stria terminalis
A

This is the proper order!

Brain Power: Anatomy (10 decks)

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