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Med School Yr 2 > Brain basics > Flashcards

Brain basics Flashcards

1
Q

what separates the two hemispheres of the cerebrum?

A

falx cerebri

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2
Q

embyrologically, what is the cerebrum derived from?

A

prosencephalon

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3
Q

what tissue is the cerebrum derived from? what is the difference?

A

grey matter - forms surface of each hemisphere
white matter - forms bulk of deeper parts

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4
Q

what is grey matter associated with?

A

processing and cognition

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5
Q

what does white matter consist of?

A

glial cells and myelinated axons that connect various grey matter areas

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6
Q

what connects the two cerebral hemispheres?

A

corpus callosum - white matter structure

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7
Q

what fissure divides the two hemispheres of the cerebrum?

A

longitudinal fissure

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8
Q

label the brainstem

A
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9
Q

label the cortex

A
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10
Q

label the role of each region

A
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11
Q

label the: forebrain; midbrain; hindbrain

A
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12
Q

label the limbic system

A
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13
Q

label the gyrus + sulci

A
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14
Q

At what level does the spinal cord finish?

A

L1/L2

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15
Q

What is the foramen magenie/median aperture?

A
  • Links fourth ventricle and cisterna magna
  • 1/3 ways CSF can enter sub-arachnoid space
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16
Q

What is the foramen Luschka/ lateral apertures?

A
  • Links 4th ventricle to cerebellopontine cistern
  • 2/3 ways CSF enters sub-arachnoid space
17
Q

How does CSF leave the ventricular system and enter the sub-arachnoid space?

A

Via 3 apertures - foramen magenie and foramen luschka

18
Q

label the ventricular system

A
19
Q

What i

A
20
Q

What is the terminal end of the spinal cord called?

A

Conus medullaris

21
Q

What type of nerve is the dorsal root of the spinal cord?

A

Sensory - nerve root outside of body

22
Q

What type of nerve is the ventral root of the spinal cord?

A

Motor - nerve root inside spinal cord

23
Q

what type of info does each contain?
* Dorsal rami of spinal nerve
* Ventral rami of spinal nerve

A

both contain motor and sensory info

24
Q
A

Med School Yr 2 (96 decks)

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