ExtraPyrmidal Tract Flashcards

1
Q

بسم الله الرحمن الرحيم وبه نستعين
الحمدلله الذي لا يحمد علي مكروه سواه فالشر ليس إليه
المسارات النازلة بتتقسم ل؟

A

Pyramidal antreior and lateral corticospinal
Extra Pyrmidal :

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2
Q

Mention ExtraPyrmidal Tracts

A

In midbrain RT
Rubrospinal Tract
Tecto spinal Tract
In PontoMedullary Junction : vo
Vstibulo spinal trace med lat
Olivo spinal Tract
Extends Througout Brainstem?
Reticulospinal tract med and lat
RTVOR
رتفوووووووور
يا تغوووووووووور

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3
Q

Pyramidal Tract fucntion ?

A

For skilled vluntary movments of Distal parts of Limbs

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4
Q

Fucntion of Extrapyramidal Tracts?

A

Subconcsous motor functions platform adjusting and maintance of ?
Posture - equilibrium -Muscle tone ) Synergistic with The skilled Pyramidal function

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5
Q

Another Functions of Extrapyramidal Tract?

A

1-Semiautomatic Motor Complex as Swinging Hand during walking
2-Alternative for pyrmidal Tract

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6
Q

what is tectum ?

A

posteior part of mid brain has 4 nuclei
2 superior colliculi
2inferior Colliculi

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7
Q

Tectospinal tract connects ?

A

Tectum with Cervical spinal cord

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8
Q

Why tectospinal ends at cervial spinal cord?

A

as it is repsonsible for Movment o Head+Neck Mucles Only

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9
Q

Tectospnal tract ends at?

A

Medial Group of Anteiror horn cells for neck Muscles

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10
Q

Tectospinal tract origin
?

A

Tectum of midbrain
superior Colliculus

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11
Q

Crossiing of Tectospinal tract ?

A

Dorsal Tegmental deucssation in midbrain till anterior white column of cervcail semgents of spinal cord

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12
Q

Site of Tectospinal Tract?

A

Anterior white column of Cervical Ssegments of Spinal cord

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13
Q

Function of Tectospinal tract?

A

Reflex of Turning Head +Neck Towards Visual + AuditorY+Cutanuous stimuli

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14
Q

الرياضة بناء الروح

A
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15
Q

Rubrospinal tract origin ?

A

Red Nucleus Of MidBrain upper level of Midbrain

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16
Q

Mention 2 decussations in midbrain

A

Ventral Temgental deucssation fro Rubrospinal Tract
Dorsal Tegmental Decussation for Tectospinal Tract

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17
Q

Tecto and rubro are ?

A

Contralateral control

18
Q

Site if Rubro and Tectospinals ?

A

Rubro = Lateral White column
Tecto :Anteiror White column

19
Q

Rubro descned in ?

A

Lateraaaaaaaaaal White Cervical !!!! Column

20
Q

Ending of Rubro and tectospinal tracts?

A

Each in Cervical AHCs but
Rubro ? Lateral group distal muscles
Tectoooo? Mediaaaal proximal muscles

21
Q

Mention Function of Rubrospinal Tract ?

A

Stimulate flexor and inhibts extensor Muscle tone of Upper limb with Pyramidal Tract

22
Q

Mention Origins of Medial And Lateral Vstibulospnal tracts

A

Medial and Lateral Vestibulospinal Nuclei

23
Q

Compare Between Crossing of med and lat vestibulosspinal tracts

A

Medial VST : Some crossed some remian uncrossed still in medial longitudinal bundle
Lateral VST :UNcrossed

24
Q

Compare site of Both VST

A

Both Anterior Column
Medial : down to t3
Lateral :Whole spinal cord

25
Q

ending of med and lat Vestibulospinal tract ?

A

Alphan + gamma neuron of externsor muscles

26
Q

Function Of Medial VST ?

A

Reflex to keep head and vision postion horizontal? during body tilting

27
Q

Extensor Muscle of The leg are called ?

A

Antigravity Muscles

28
Q

Lateral vestibulospinal tract Function ?

A

Adjusting Posture !!!
Receving Cerbellar impulses by Later vestibulospinal Nucleus then send to extensors of The leg
SubConsious

29
Q

Medial Reticulospinal tract is called?
and the lateral ?

A

Pontine Reticulospinal Tract
Medullay reticulospinal tract for the lateral

30
Q

Origin of Medial Reticulospinal Tract and Lateral Reticlopsonal tract ?

A

Medial from Pontine Reticular Formation
Lateral from Medullay reticular Formation

31
Q

Compare Crossing of Medial and Lateral Reticulospinal Tract

A

Medial is UNcrossed
Lateral is Crossed

32
Q

Compare the site of Both medial and lateral reticulospoinal tracts ?

A

Medial reticulospinal Tract through anterior Column
Whole cord
Lateral Reticulospinal Tract Through Lateral Column Whole Cord

33
Q

What is the end of Both Medial And lateral Reticulospinal Tracts ?

A

Gamma motor Neurons of Lamina IX 9 in spinal cord
Gamma motor Neuron of Lamina IX 9 in spinal cord
Gamma Motor Neuron of Lamina XI 9 in spinal cord

34
Q

Compare Functions of medial and lateral reticulospinal tracts

A

Antagonism appear in their functions as ? :
Medial : Facilitates Extensor Tone
Lateral : Inhibit Extensor Tone

35
Q

Show Origin of Olivospinal tract

A

Inferior Olivary Nucleus in Medulla Oblongata

36
Q

Inferior Olivary Nucleus Receive Impulses from ?

A

Cerebellum so share in
Unconsiou propicepton
equillibrium + position + balane
SubConscous motor movments

37
Q

Desribe Olivospinalt tract

A

Cerebellum gives to Inferior Olivary Nucleus giving axons cross and descned to AHCs

38
Q

Function OF OlivoSpinal Tract
mention

A

Receving from cerebellum to Inferior Olivary Nucleus so
1- Unconsciuous propricepton
2-Blance -equlibrium -postiton
3-Unconscious motor movments
in book ?
Relay proprception to cerebellum
Relay motor information to cerebellum by Olivo cerebellat tract ?

39
Q

Olivo spinal tract relay moto inforamtio to cerebellum through

A

Olivo Cerbellat Tract

40
Q

ويستنبئونك أحق هو ؟؟؟
قل أي وربي إنه لحق ,,,

A

وما أنتم بمعجزين !