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Lab Practical 3: Nervous System
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You are responsible for learning all of the
following nervous system structures
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Structures of the Multipolar Neuron
1. Dendrites
2. Nucleus
3. Axon hillock
4. Schwann Cell
5. Axon
6. Myelin
7. Terminal
8. Neurilemma
9. Node of Ranvier
See next slide for what the numbered structures are.
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Structures on Cross-section of Spinal Cord
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1. Dorsal column
2. Lateral column
3. Ventral column
4. Anterior white commissure
5. Dorsal horn
6. Lateral horn
7. Ventral horn
8. Gray commissure
9. Central canal
10. Posterior median sulcus
14. Anterior median fissure
See next slide for what the numbered structures are.
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Structures on Cross-section of Spinal Cord
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12. Dorsal rootlets
13. Ventral rootlets
23. Dorsal root
24. Dorsal root ganglion
25. Ventral root
26. Spinal nerve
27. Dorsal ramus
28. Ventral ramus
29. White ramus
30. Gray ramus
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Spinal Cord and Plexuses
1. Cervical plexus (C1-C5)
2. Brachial plexus (C5-T1)
3. Spinal cord
4. Lumbar plexus (L1-L4)
5. Cauda equina
6. Sacral plexus (L4-S4)
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Spinal Cord and Plexuses
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1. Spinal cord
2. Cauda equina
3. Lumbar plexus (L1-L4)
4. Sacral plexus (L4-S4)
5. Sciatic nerve
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Brain, Spinal Cord and Plexuses
1. Cerebrum
2. Cerebellum
3. Spinal cord
4. Cervical plexus (C1-C5)
4. Brachial plexus (C5-T1)
8 cervical nerves
31 Pairs
of Spinal
Nerves
12 thoracic nerves
5 lumbar nerves
5 sacral nerves
1 coccygeal nerves
Note the spinal scoliosis
Spinal nerves
8 Cervical
12 Thoracic
5 Lumbar
Lobes of Cerebrum
1. Frontal lobe
2. Parietal lobe
3. Occipital lobe
4. Temporal lobe
5. Lateral fissure
6. Transverse fissure
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Brain Structures
1. Gyri (ridges)
2. Sulci (creases)
3. Occipital lobe
4. Temporal lobe
5. Postcentral gyrus
6. Central sulcus
7. Precentral gyrus
Gyri, Sulci, Fissures and
Lobes
1. Postcentral gyrus
2. Central sulcus
3. Precentral gyrus
4. Longitudinal fissure
5. Frontal lobe
6. Parietal lobe
7. Occipital lobe
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Brain Structures
10. Corpus callosum
21. Hypothalamus
22. Intermediate mass of thalamus
23. Pineal gland
25. Pituitary gland
31. Corpora quadrigemina of midbrain
32. Midbrain
Brain Structures
1. Midbrain
2. Pons
3. Medulla oblongata
4. Spinal cord
5. Cerebellum
6. Arbor vitae of cerebellum
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Brain Structures Associated with Ventricles
11. Septum pellucidum (wall between lateral ventricles)
20. Third ventricle
40. Cerebral aqueduct
41. Fourth ventricle
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Brain Structures
36. Septum pellucidum
43. Third ventricle
50. Arbor vitae of cerebellum
54. Midbrain
60. Fourth ventricle
61. Medulla oblongata
64. Spinal cord
65. Central canal
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70. Pons
71. Cerbral aqueduct
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Brain Structures
1. Frontal lobe
2. Olfactory bulb
3. Olfactory tract
4. Optic nerve
5. Pituitary gland
6. Temporal lobe
7. Pons
8. Medulla oblongata
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Cranial Nerves
1. Optic nerve
2. Optic chiasma
3. Optic tract
5. Trigeminal nerve
7. Olfactory bulb
8. Olfactory tract
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Other Brain structures
25. Pituitary gland
36. Pons
39. Medulla oblongata
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Ventricles
1. Lateral ventricle
2. Lateral ventricle
3. Third ventricle
4. Fourth ventricle
5. Cerebral aqueduct
Ventricles
1. Lateral ventricle
2. Lateral ventricle
3. Third ventricle
4. Fourth ventricle
5. Cerebral aqueduct
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Cranial Nerves
1. Superior sagittal sinus
2. Arachnoid granulation
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Brainstem and Diencephalon
2. Thalamus
16. Pons
19. Medulla oblongata
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Brainstem and Diencephalon
a. pons
b. medulla oblongata
c. midbrain
i. corpora quadrigemina
n. 3rd ventricle
o. thalamus