ExtraPyrmidal Tract Flashcards by Omar Gazar

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

Pyramidal antreior and lateral corticospinal
Extra Pyrmidal :

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Mention ExtraPyrmidal Tracts

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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Pyramidal Tract fucntion ?

For skilled vluntary movments of Distal parts of Limbs

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Fucntion of Extrapyramidal Tracts?

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

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Another Functions of Extrapyramidal Tract?

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

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what is tectum ?

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

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Tectospinal tract connects ?

Tectum with Cervical spinal cord

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Why tectospinal ends at cervial spinal cord?

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

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Tectospnal tract ends at?

Medial Group of Anteiror horn cells for neck Muscles

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Tectospinal tract origin
?

Tectum of midbrain
superior Colliculus

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Crossiing of Tectospinal tract ?

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

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Site of Tectospinal Tract?

Anterior white column of Cervical Ssegments of Spinal cord

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Function of Tectospinal tract?

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

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الرياضة بناء الروح

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Rubrospinal tract origin ?

Red Nucleus Of MidBrain upper level of Midbrain

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Mention 2 decussations in midbrain

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

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Tecto and rubro are ?

Contralateral control

Site if Rubro and Tectospinals ?

Rubro = Lateral White column
Tecto :Anteiror White column

Rubro descned in ?

Lateraaaaaaaaaal White Cervical !!!! Column

Ending of Rubro and tectospinal tracts?

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

Mention Function of Rubrospinal Tract ?

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

Mention Origins of Medial And Lateral Vstibulospnal tracts

Medial and Lateral Vestibulospinal Nuclei

Compare Between Crossing of med and lat vestibulosspinal tracts

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

Compare site of Both VST

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

ending of med and lat Vestibulospinal tract ?

Alphan + gamma neuron of externsor muscles

Function Of Medial VST ?

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

Extensor Muscle of The leg are called ?

Antigravity Muscles

Lateral vestibulospinal tract Function ?

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

Medial Reticulospinal tract is called? and the lateral ?

Pontine Reticulospinal Tract Medullay reticulospinal tract for the lateral

Origin of Medial Reticulospinal Tract and Lateral Reticlopsonal tract ?

Medial from Pontine Reticular Formation Lateral from Medullay reticular Formation

Compare Crossing of Medial and Lateral Reticulospinal Tract

Medial is UNcrossed Lateral is Crossed

Compare the site of Both medial and lateral reticulospoinal tracts ?

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

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

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

Compare Functions of medial and lateral reticulospinal tracts

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

Show Origin of Olivospinal tract

Inferior Olivary Nucleus in Medulla Oblongata

Inferior Olivary Nucleus Receive Impulses from ?

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

Desribe Olivospinalt tract

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

Function OF OlivoSpinal Tract mention

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 ?

Olivo spinal tract relay moto inforamtio to cerebellum through

Olivo Cerbellat Tract

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

وما أنتم بمعجزين !