1. CNS Sequence
CNS Histology
March 8, 2010

2. 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

3. 65-2 Lumbar Spinal Cord, H&E
Dura mater
D.R.G.
Spinal Cord
Myelinated nerves

4. #65-1N Spinal cord and DRG Dorsal horn Lateral horn Ventral horn
Dorsal root ganglion (DRG)

5. 66a Thoracic Spinal Cord Dorsal median sulcus Dorsal horn Lateral horn
Ventral horn
Ventral median fissure

6. 66a Thoracic Spinal Cord Neurons in Lateral Horn
Neurons in ventral Horn

7. 65-1N Motor neurons, glial cells and neuropil

8. Dorsal root ganglion cells

9. Brain Cerebrum Cerebellum 3rd ventricle 4th ventricle Pons
Sulcus (sulci) Gyrus (gyri)
3rd ventricle
Cerebellum
4th ventricle
Pons
Medulla oblongata

10. Cerebrum and Cerebellum77

11. #77 Cerebellum #76b Cerebrum
C: Cortex of gray matter W: White matter C C C W W W

12. #77 Cerebellum
Cortex
White matter

13. #77 Cerebellum ML GL WM
Purkinje neurons (cells)

14. #77a Cerebellar Cortex

15. #76 Cerebrum
White matter
Cortex of gray matter

16. #76
Cerebral cortex
Ross and Pawlina, p.311

17. C C Cerebellum Cerebrum W W C: Cortex of gray matter W: White matter
Purkinje cells (neurons) C C
Pyramidal cells (neurons) W W

18. Hippocampal Formation
Posterior View
Lateral View

19. #NP004N Hippocampal region CA: Cornus ammonis
Choroid plexus
CA2
CA3
Dentate gyrus
Hippocampus
CA1

20. 3 layers of Hippocampal region
Polymorphic layer
Pyramidal cell layer
Molecular layer
Pyramidal cells

21. 3 layers of Dentate gyrus
Molecular layer
Molecular layer (dendrites of granule cells)
Granule cell layer (neurons)
Polymorphic layer
Polymorphic layer (interneurons)

22. #74 Sympathetic ganglion cells #75 Parasympathetic ganglion cells
Seminal vesicle

23. Sensory and Autonomic Neurons (DRG) (Parasympathetic)