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Summary

Summary of Grey and White Matter of the CNS in Cross-sections (Spinal cord, Medulla oblungata, Mesencephalon)

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This is a condensed summary of the functions and pathways of all the Grey (nuclei) and White (tracts) matter in the CNS region via cross sections in each appropriate region, to get the big picture of how they travel. It includes 1 scheme showing the overview of all nuclei in the medulla oblongata, pons, mesencephalon, and then 7 cross sections taken at different levels within the spinal cord, medulla oblongata, pons, and mesencephalon, explaining where the tracts are according to anatomical structures, what their end goal function is, and what pathways they take. Remember to take a look at the KEY at the beginning regarding what different colors and highlights mean.

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CRANJAL NERVES COLOR MEY
MATTER Function CLAS
CN I Olfactory n
Sensory
-

.
-




ae -So
Sensory
·Somatosensor
CN# Option
-
-
.




Oculomotoris Next fossu interpetrnculasat
-Oculomotor .Motor Julous
1 .
to

to frenulum veli medularis
eriorly next sup.
Special Sensory
CN -Trigeminal n .
- Both -
from Pons
VoFiblunorbise
Bulbopontinosva




Treo sonenter
Julaus
SOMATOSENSORY
-




SENS
3
-
Fatial n . -
Both
Julors Boldopontinosus



↓
>
- Internal acoustio meatus
-
Vestibulocochlear n
. -



Sensory >
- Epioritia Highly Localized sensations o

Discriminative


3
>
- Ability betw
to
distinguish
-




edite get forete Eti,a Proprioception-Jense
Jugilg >
- of position and movem



: · Canalis .
1
(Ventromedially)

Hypoglossi
Protopathic-Intensity and location of Stim



of Medulla oblongate

nc .

Parasympatheticus . .
I (ocu

nc. Originis n . (oculomo
⑳

.


MESENCEPHALON
⑳ nc). Originisn . (Troch
V
Mesenrephali
⑳
·
· .
n .


·
↳ Proprioception



ncl Originis Masticatorius
.




nc V
O
·
nc). Originis . T (Abduc
Principalis
n
· . n . . -




↳ Discriminative ⑳ O
.
PONS sensation of the head
no .
Origin is a -- /Fac
· ncl Vestibulares + cochlearis O
⑳ ⑳
.


⑳ not .
Jalivatorius Sup. .




3
Auditory pathway ⑭
nc Salivatorius
.
int .




·



(
-
n .
IX-Gl
⑳ nd. Ambiguus 1

1
.
x
XI-Ac
-




not Solitaris
.




⑳ .
. ⑳

Originis Gorsalis
O
(taste)
· ne .
↳ Sup Part GUSTATORSUs
MEDWLLA
: d
⑳
. .




↳ Inf .

part Barroreflex
·




·
OBLONGATA
·

·... c .
Spinalis n .
V ·
O

O
·
ncl originis .
n .
XII
(Hyp
↳ Nociception thermoception ⑳
,




·
CROSS-JECTION THROUGH JPGNAL CORD ON JEGMENT LEV


Primary sensory Neurons of Pseudounipolar Dorsal spinal foot

type in torsal root
ganglia Fasoculus Posterol
Mez
.
goo intermetios ↳ With tr Dorsolateralis
.
Lissaveri

stors ↳ NOSCEPTION THERMORECEPTION




tUp-
.
+




No) . Postero marginali
funioulus--Posterior groove
Substantia gelatinos
Fasoiculus Grasilis
Posterolateral
E
↑
tr.
Spinobulbaris
↳
FreeT5OJeusationFrom&RG,Jedingutos on Lower
extremity)
- A
(Apex Collumnae post
Fasciorlus Creatus
tr.
Corticospinalis L
↳ Run PROPRSOCEPTION of
upper extremity to
16) .
CUNEATUS LAT .




↳ EPSRSTIC sensation of to
upper extremity
10 .
CUNEATUS MED .




FourtofLaminious medial is
is
with


ec

.

Prepairs

Document information

Uploaded on
March 9, 2024
Number of pages
4
Written in
2023/2024
Type
Summary
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