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A-CNS Anatomy > Brainstem+ 4th ventricle +reticular formation > Flashcards

Brainstem+ 4th ventricle +reticular formation Flashcards

1
Q

بسم الله الرحمن الرحيم

the brains stem contents?

A

White matter :
Longitudinal fibers :
Ascending tracts : lemisci
Descending tracts : pyramidal and extrapyramidal
Asscocaiton fivers
Horizontal fibers :
Deucssations : Sensory motor in medulaa
Arcuate fibers
_____________________
Grey matter
Cranial Nerve Nuclei
Other Nuclei :
1-Red Nucels midbrain
2-ponitine pons
3-Olivary in medulla
_____________________
Reticular formation :
Mixed grey and whie connecfting parts of brains stem

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2
Q

mid brain radriates whic nereves?

A

Occulmotr CN3
Trochelar CN4

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3
Q

Only cranial nerve from dorsal surface of Brainstem ?

A

Trochlear CN4

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4
Q

sTRUCTUE Winding around the cerebral peduncle :?

A

Optic tract
Trochlear nerce
posterior cerevral artery basalilar veimn

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5
Q

Interpenducle fossa belong to ?
boundaries ?
contents ?

A

hypothalamus
Anterior optic chiasma
anterolateral otpic tract
posteriolateral cerebral peduncle
posterio upper pons
___________________
Tuber cinerum
Mammilary bodies
posterior perforated substance by central branches of posteroip cerebral atrtery
Occullllllllumotorrrrrrrrr NEERVE

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6
Q

posterior perforated substance by?

A

By central branches posterior cerebral artery that winds aroung the cerebral peduncle

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7
Q

Anterior perforated substance by?

A

CENTRAL BRANCHES FO anterior and middle cerebral aretrires

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8
Q

sulcus of basailart aretery appeain in ?

A

pons

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9
Q

Transvers ponitine fibers corss the ?

A

The middle cerebral peduncle
divding bundles of corticospinal tracts

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10
Q

CN in the pons ?

A

5678 middle 4 cranial nerves !
Trigiimenal
Abducent
Facial
VestibuloCochlear
__________________

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11
Q

Trigimnal roots ?

A

2 ROOTS
SENSORY LARGE LATERAL
MOTOR SMALL MEDIAL

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12
Q

Facial mianly/ ?

A

motor
motor root large medial
sensory inverse intermidus small lateral

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13
Q

Vestibulochoclear

A

Vestibular medially
choclear laterally

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14
Q

CerebelloPontine angle tumor cause?

A

Facial palys
deafness vertigo CN8

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15
Q

ELEVATIONS OF medulla

A

Pyramid olive ICP

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16
Q

CNs in Medulla

A

bet pyramid and olive cn12 Hypoglossal
bet olive and icp
91011
glossopharyngeal
vagus
accessory

17
Q

Rhomoid fossa

A

floor of 4th ventricle form midbrain and upper pons

18
Q

dorsal midbrain contaings

A

4 colliculi
superior to lateral geniculat body
inferior to medial geniculate of hypothalamus
pineal body

19
Q

Pons dorsal

A

median sulcus
suclus limitan
medial eminice
facial colliculis
sup fovea
sup vestibular area
Locus cereules seceting NE

20
Q

dORsal medulla

A

OPEN MEULLA:
INF fovea containing ??
Vagal hypoglossal vestibular trigones
Closed Medulla containg:
Gracile and cunate tracts and ICP

21
Q

the cavit of ehomencephalon is ?

A

4th ventricel in hind brain
lying between cerebellum and brainstem

22
Q

Communitcations of 4th ventrcle

A

It commuinates
Superiorly: with the third ventricle through cerebral aqudect of sylivus Inferiorly: to the central canal of medulla oblongattttta
Subaracnois space : by 3 foramina one medial +2 lateral

23
Q

Ventriucluar system explain

A

2 lateral ventricles in the cerebral hemispheres connected throgh foramen of Monro to the third ventricle that is connected to fourth through cerebral aqudect of sylivus then to cental canal in mdulla

24
Q

Describe Roof and Floor of the 4th ventricle

A

the Roof :
The Superior medullaRY valum + superior cerebellar pednucles
The inferior medullary valum conatingin the Foramen Of Magendi that connects the interior of 4th ventricle to the subarachnoid space
__________________________
The Floor :
Pons and upper medulla separated my stria medullaris
The dorsal Pons :
medial emincine and facial colliculs and Suclus limitans with locus cereules and superior fovea and superior vestibular area
Upper medulla the
open medulla : Inferior Fovea
The Vagal +Hypoglossal + Vestibular Trigone
+Area Postreama of CTZ

25
Q

Lateral boundaries of 4th ventricle

A

Supeior : superiocereberal peduncels
inferior : ICP + Gracile+ cunate
laterall: recess of cavity over ICP connected to the subarachnoid space through formane of Luscka

26
Q

Reticular formation ?

A

White and grey matter in extending thorugh brainstem superioly to hypothalamus and thalamus
inferioly to spinal cord
3 columns
medial median lateal

27
Q

الحمدلله رب العالمين

A

A-CNS Anatomy (27 decks)

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