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Central Nervous System Histology Slide Orientation. Spinal cord. Dorsal horns: Interneurons Ventral horns: Motor neurons Lateral horns: Sympathetic neurons Parasympathetic (S2-4) neurons DRG: Sensory (pseudounipolar) neurons

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slide1

Central Nervous System

Histology Slide Orientation

spinal cord
Spinal cord

Dorsal horns: Interneurons

Ventral horns: Motor neurons

Lateral horns:

Sympathetic neurons Parasympathetic (S2-4) neurons

DRG:Sensory (pseudounipolar) neurons

Autonomic ganglia: Post ganglionic neurons with unmyelinated axons. Sympathetic: paravertebral ganglia Parasympathetic: In organs

65 2 lumbar spinal cord h e
65-2 Lumbar Spinal Cord, H&E

Dura mater

D.R.G.

Spinal Cord

Myelinated nerves

65 1n spinal cord and drg
#65-1N Spinal cord and DRG

Dorsal horn

Lateral horn

Ventral horn

Dorsal root ganglion (DRG)

66a thoracic spinal cord
66a Thoracic Spinal Cord

Dorsal median sulcus

Dorsal nucleus of Clarke

(proprioceptive)

Dorsal horn

Lateral horn

Ventral horn

Ventral median fissure

66a thoracic spinal cord1
66a Thoracic Spinal Cord

Neurons in Lateral Horn

Neurons in ventral Horn

slide11

Brain

Cerebrum

Sulcus (sulci) Gyrus (gyri)

3rd ventricle

Cerebellum

4th ventricle

Pons

Medulla oblongata

77 cerebellum 76b cerebrum
#77 Cerebellum #76b Cerebrum

C: Cortex of gray matter W: White matter

C

C

C

W

W

W

77 cerebellum
#77 Cerebellum

Cortex

White matter

77 cerebellum1
#77 Cerebellum

ML

GL

WM

Purkinje neurons (cells)

76 cerebrum
#76 Cerebrum

White matter

Cortex of gray matter

slide18

#76

Cerebral cortex

Ross and Pawlina, p.311

cerebellum cerebrum
CerebellumCerebrum

C: Cortex of gray matter W: White matter

Purkinje cells (neurons)

C

C

Pyramidal cells (neurons)

W

W

hippocampal formation
Hippocampal Formation

Posterior View

Lateral View

slide21

LIMBIC LOBE (Cortical Areas) Cortex Type

Cingulate gyrus & Isthmus Neocortex (six layers)

Subcallosal area

Parahippocampal Gyrus Paleocortex (3-5 layers)

Uncus

Hippocampus Archicortex (3 layers)

(Deep within parahippocampal gyrus)

hippocampal formation dentate gyrus hippocampus subiculum
Hippocampal Formation Dentate GyrusHippocampusSubiculum

Martin: Neuroanatomy

Figs. 15-3, 4, 14

np004n hippocampal region ca cornus ammonis
#NP004N Hippocampal regionCA: Cornus ammonis

Choroid plexus

CA2

Fornix

Lateral ventricle

CA3

Dentate gyrus

Hippocampus

CA1

Subiculum

3 layers of dentate gyrus archicortex 3 layers as opposed to neocortex 6 layers
3 layers of Dentate gyrusArchicortex (3 layers), as opposed to Neocortex (6 layers)

Molecular layer

Molecular layer (dendrites of granule cells)

Granule cell layer (neurons)

Polymorphic layer

Polymorphic layer (interneurons)

3 layers of hippocampus archicortex
3 layers of Hippocampus(Archicortex)

Polymorphic layer

Pyramidal cell layer

Molecular layer

Pyramidal cells