HC.2 - Basale kernen Flashcards

(16 cards)

1
Q

Final common pathway

A

Motorneuronen

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2
Q

Effect laesie van piramidebaan

A

Verlamming

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3
Q

Effect laesie van extrapramidaal baan

A

Problemen in aansturing van beweging, niet kracht

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4
Q

Basale ganglie

A
  • Centrum centraal zenuwstelsel
  • Telencephalon vooral
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5
Q

Basale ganglie onderdelen

A
  • Striatum (n. caudatus + putamen, n. accumbens)
  • Pallidum (globus pallidus pars ext. pars int.)
  • Nucleus subthalaicus (diencephalon)
  • Substantia nigra (mesencephalon)
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6
Q

Striatum

A
  • Projectie cellen: Medium spiny neurons
  • GABAerg
  • D1-receptor (globus interna)
  • D2-receptor (globus externa)
  • Chilinerge interneuronen
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7
Q

Globus pallidus

A

Pars interna en externa: GABAerge projectieneuronen

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8
Q

N. subthalamicus

A

Glutamaterge projectieneuronen

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9
Q

Substantia nigra

A
  • Pars reticulata: GABAerge projectieneuronen
  • Pars compatcta: Dopaminerge projectieneuronen
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10
Q

Directe route

A

Striatum en globus pallidus interna

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11
Q
A
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12
Q

Indirecte route

A

Striatum en globus pallidus externus en daarna via de nucleus subthalamicus naar de globus pallidus interna

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13
Q

Effect van dopamine op D1 en D2

A

Remming D2 en stimulatie D1

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14
Q

Deep brain stimulation targets

A
  • Globus pallidus interna
  • N. subthalamicus
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15
Q

Ziekte van huntingont

A
  1. Degeneratie van enkphaline D2-neuronen
  2. Geen remming op globus pallidus externa
  3. N. subthalamicus extra geremd
  4. Minder stimulatie van de remmende werking van globus pallidus
  5. Hyperkinesie
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