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Sectional Anatomy of the Brain Stem
Dr. Rayhan ShahrearDept. of Anatomy, BSMMU.
2
Objectives
• Describe the relation of the structures in the sections at each level of the brain stem.• Discuss some neuro-anatomical terminologies relevant to brain
stem.• Explain the fuctional components of cranial nerves.
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Alar
Basal
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5
6
7
8
GVA
SVA
GSA
SSA
GSE
SVE
GVE
9
FG
FC
ST
SC
VSC
DSC
10
NGFG
NCFC
MAON
SG VST V
LST
PSCASC
Medulla at Pyramidal Decussation
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ML
IAF
Medulla at Medial Lemniscus Decussation
12
ICP
Medulla at Mid Olive
13
Medulla above the Olive
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MCP
Pons at Facial Colliculus
SCP
15
Pons at Trigeminal Nuclei
SL
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DSCP
TL
ML
Mid Brain at Inf. Colliculus
SL
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Mid Brain at Sup. Colliculus
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SC
ONN
RN
MNT
SN
TPF
CF
FP
RF
III
Mid Brain at Sup. Colliculus
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Mid Brain at Inf. Colliculus
IC
TNN
IV
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21
Pons at Trigeminal Nuclei
PN
CS
MN VSN V
V
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Pons at Facial Colliculus
VII
VI
MN VII
N VI
23
24
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Medulla above the Olive
P
AN
PCNACNLVN
MVN
NAN XIIDN X
MLFTST
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Pons at Facial Colliculus
TB
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Pons at Trigeminal Nuclei
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Mid Brain at Inf. Colliculus
LL
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Mid Brain at Sup. Colliculus
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Mid Brain at Inf. Colliculus
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Pons at Trigeminal Nuclei
32
Pons at Facial Colliculus
33
Medulla above the Olive
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NTS
X
XII
Medulla at Mid Olive
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N XII
XII
N XI
XI
Medulla at ML Decussation
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XI
N XI
PD
Medulla at Pyramidal Decussation
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PDMLF
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Thank You