NEUROLAB: BRAINSTEM

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53 Terms

1
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CNs in midbrain

3, 4 (@ crus cerebri)

2
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CNs in pons

5,6,7,8

3
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CNs in medulla

9,10,11,12 (@ decussation of pyramids)

4
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MNEMONIC FOR WHERE CNS EXIT

Christy Often Stays Frying For Ian Jay Howard

5
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Christy

Cribriform plate - CN I

6
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Often

Optic canal - CN II

7
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Stays

Superior orbital fissure - CN 3, 4, V1, 6

8
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Frying

Foramen rotondum - V2

9
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For

Foramen ovale - V3

10
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Ian

IAM - 7, 8

11
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Jay

Jugular foramen - 9, 10, 11

12
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Howard

Hypoglossal - 12

13
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T or F: The reticular formation is loc across all levels

True

14
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@ Lvl of the brainstem, ipsilat CN = __ hemiparesis

contralat

15
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Lvls at the midbrain

Pyramids

Medial lemnisci

Olives

Inferior to the pons

16
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Lvls at the pons

Facial colliculus

Trigeminal nuclei

17
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Lvls at the medulla

Inferior colliculi

Superior colliculi

18
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MNEMONIC FOR LVLS ACROSS BRAINSTEM

Peter Made Omelettes In Five Tasty Ingredients Sarap

19
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Muscles innervated by CN III

Superior rectus

Inferior rectus

Medial rectus

Inferior oblique

20
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Muscle innervated by CN IV

Superior oblique

21
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Muscle innervated by CN VI

Lateral rectus

22
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Medial eye deviation = __ CN problem = _ (struc & lvl affected)

VI

Facial colliculus

Level of pons

23
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Lateral eye deviation = __ CN problem = _ (struc & lvl affected)

CN III

Edinger Westphal - Superior colliculus

Level of medulla

24
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CN for constriction of pupils

CN III

25
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CN for pupillary light reflex

CN III

26
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Superior colliculus vs inferior colliculus in terms of function

Sup - visual

Inf - audition

27
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CNV Sensory and motor divisions

Sensory to face

Motor for mastication

28
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CNV: Sensory to face

Spinal - PAIN

Mesencephalic nucleus - PROPRIOCEPTION

Main nucleus - LIGHT TOUCH, PRESSURE

29
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CNV: Mastication: All muscles close the mouth except for __

Lateral pterygoid

30
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CNVII: Sensory and motor divisions

Motor to facial m

Sensory to ant 2/3 of tongue

31
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Responsible for taste (tract)

Tractus solitarius

32
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Divisions in terms of innervation of tractus solitarius

Ant 2/3: CNVII

Pos 1/3: CN IX

Base: Vagus

33
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Facial colliculus & just inferior to pons

CNVIII

34
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CNs responsible for swallowing

CNIX & X

35
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Has CV function

CNX

36
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Motor nucleus of CN IX & X

Nucleus ambiguus

37
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Nucleus responsible for swallowing

Nucleus ambiguus

38
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CN for uvula control

CNX

39
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Problem of the uvula = devation to __ side

Stronger

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R CNX problem = uvula towards __

Left

41
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CNXI innervates

Traps & SCM

42
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CNXII controls

Tongue

43
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Probelm @ L CNXII = tongue deviates to __

Left (weaker side)

44
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MPS Palpate mo Lang, Ouch Na

Midbrain - Mesecephalic n. - Proprioception

Pons - Principal/main nucleus - Light touch/pressure

Medulla - Spinal nucleus - Pain & temp

45
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Lvl of Pons

Facial colliculus - CN 5,6,7,8 (spinal nucleus of CN5)

Trigeminal nucleus - Main sensory nucleus

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The ff sx will be present at the level of the olives except for

A. deviation of uvula

B. Weak m of mastication

C. Swallowing problem

D. None of the above

B

47
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Lateral corticospinal tract innervates __ & decussates @

Limbs

Medulla

48
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Anterior corticospinal tract innervates __ & decussates @

Axial, gross

Spc

49
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lateral medullary syndrome

P tosis - droop eye

A nhydrosis - dry?

M iosis - constrict

E exopthalmus - protruding eye

50
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MEDULLA: Lvl of decussation of pyramids & medial lemnisci: Cavity, Nuclei, Motor tracts, Sensory tracts

51
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MEDULLA: Lvl of olives (inf cereb peduncle), Inferior to the pons: Cavity, Nuclei, Motor tracts, Sensory tracts

52
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PONS: Lvl of facial colliculus, trigeminal nuclei: Cavity, Nuclei, Motor tracts, Sensory tracts

53
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MIDBRAIN: Lvl of sup & inf colliculi: Cavity, Nuclei, Motor tracts, Sensory tracts