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CNS Sequence
CNS Histology
March 8, 2010
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
Dura mater
D.R.G.
Spinal Cord
Myelinated
nerves
#65-1N Spinal cord and DRG
Dorsal
horn
Lateral horn
Ventral horn
Dorsal root
ganglion (DRG)
Dorsal median sulcus
66a Thoracic Spinal Cord
Dorsal horn
Lateral horn
Ventral horn
Ventral median fissure
66a Thoracic Spinal Cord
Neurons in Lateral Horn
Neurons in ventral Horn
65-1N Motor neurons, glial cells and neuropil
Glial cells
Neuropil
Dorsal root ganglion cells
Brain
Cerebrum
Sulcus (sulci)
Gyrus (gyri)
3rd ventricle
Cerebellum
4th ventricle
Pons
Medulla oblongata
Cerebrum and Cerebellum
76b
77
#77
Cerebellum
#76b
C: Cortex of gray matter
Cerebrum
W: White matter
C
C
C
W
W
W
#77 Cerebellum
Cortex
White matter
#77 Cerebellum
Purkinje neurons (cells)
#77a Cerebellar Cortex
#76 Cerebrum
#76
Cerebral cortex
Ross and Pawlina, p.311
Cerebellum
Cerebrum
C: Cortex of gray matter
W: White matter
Purkinje cells
(neurons)
C
C
Pyramidal cells
(neurons)
W
W
Hippocampal Formation
Lateral View
Posterior View
#NP004N
Hippocampal region
CA: Cornus ammonis
Choroid plexus
CA2
CA3
Hippocampus
CA1
Dentate gyrus
3 layers of Hippocampal region
Polymorphic layer
Pyramidal cell layer
Pyramidal cells
3 layers of Dentate gyrus
Molecular layer
(dendrites of granule
cells)
Granule cell layer
(neurons)
Polymorphic layer
Polymorphic layer
(interneurons)
#74 Sympathetic ganglion cells
#75 Parasympathetic ganglion cells
Seminal vesicle
Sensory and Autonomic Neurons
(DRG)
(Parasympathetic)