ALC UNIR ENF aula 2 cranio estrutura encefalica topografia

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SNC vascularização ; segmentação ; topografia
UNIR – Medicina :Professor Alexandre Leite
Main Divisions of the CNS
Blumenfeld, 2002
Blumenfeld, 2002
preoccipital notch
Cerebrum
Frontal Lobe – Lateral View
Frontal Lobe – Inferior View
Parietal Lobe
Occipital Lobe
Temporal Lobe
Temporal Lobe - Functional Areas
Limbic Lobe
Sistema Limbico 
Amygdala – emoção e memoria
Hippocampus – aprendizado e memoria
Basal ganglio (corpus striatum) – controle de movimento
Commissural Fibers
Corpus callosum		 3. Forceps minor
Anterior commissure	 4. Forceps major
1. Pyramidal Cell
2. Fusiform Cell 
3. Granular (Stellate) Cell
4. basket cell
5. double bouquet cell 
6. chandlier cell 
7. neurogliform cell
8. Horizontal Cell of Cajal 
9. Cells of Martinotti
a: axon
Cerebral Cortex
Won Taek Lee, M.D., Ph.D.
37
Stellate and pyramidal cells are the most prominent. Stellate are relatively small; axons don’t leave the cortex. Primary interneuron in the cortex. Pyramidal vary tremendously in size. Long apical dendrite ascends to the surface. Long axons connect to other cortical sites or to subcortical structures (principal output neurons). Horizontal Cell of Cajal – most common in early development then disappear; in the most superficial layers. Fusiform cells in the deepest cortical layer. Axon leaves the cortex. Cells of Martinotti are unusual in that their axons ascend to the surface.
Blumenfeld, 2002
38
Prefrontal association cortex: very rich in corticocortical connections (Layer III); Motor cortex; very small Layer IV (connections from thalamus).
39
Mention Fleischig’s rule
1
2
3
3
3
2
1
1
Sensory Homunculus
Motor Homunculus
Blumenfeld, 2002