CNS Sequence
CNS Histology
March 9, 2009
Spinal cord
Dorsal horns: InterneuronsVentral horns: Motor neurons Lateral horns: Sympathetic neurons Parasympathetic (S2-4) neuronsDRG: Sensory (pseudounipolar) neuronsAutonomic ganglia: Post ganglionic neurons with unmyelinated axons. Sympathetic: paravertebral ganglia Parasympathetic: In organs
66a Thoracic Spinal Cord
Ventral median fissure
Dorsal horn
Lateral horn
Ventral horn
Dorsal median sulcus
66a Thoracic Spinal Cord
Neuron in Lateral Horn
Neurons in ventral Horn
#65-1N Spinal cord and DRG
Ventral horn
Lateral horn
Dorsal horn
Dorsal root ganglion (DRG)
65-1N Motor neurons, glial cells and neuropil
Glial cells
Neuropil
Dorsal root ganglion cells
Cerebrum
Sulcus (sulci) Gyrus (gyri)
Cerebellum
Pons Medulla oblongata
3rd ventricle
4th ventricle
Brain
Cerebrum and Cerebellum
76b
77
#77 Cerebellum #76b Cerebrum
W WW
CC
C
W
C: Cortex of gray matter W: White
matter
#77 Cerebellum
Cortex
White matter
#77 Cerebellum
WM
GL
ML
Purkinje neurons (cells)
#77a Cerebellar Cotex
#76 Cerebrum
Wh
ite m
atte
rW
hite
matte
r
Cortex of gray matter
#76
Ross and Pawlina, p.311
Cereb
ral cortex
Cerebellum Cerebrum
CC
W
W
Purkinje cells (neurons)
Pyramidal cells (neurons)
C: Cortex of gray matter W: White matter
#NP004N Hippocampal regionCA: Cornus ammonis
CA1
CA3
CA2
Dentate gyrusHippocamp
us
Choroid plexus
3 layers of Hippocampal region
Molecular
layer
Pyramidal cell layer
Polymorphic layer
Pyramidal cells
3 layers of Dentate gyrus
Mol
ecul
ar
laye
r
Granule cell layer (neurons)
Polymorphic layer Polymorphic layer (interneurons)
Molecular layer (dendrites of granule cells)
#74 Sympathetic ganglion cells #75 Parasympathetic ganlion cells
Seminal vesicle
Sensory and Autonomic Neurons (DRG) (Parasympatheitc)