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dorsal (posterior) horn dorsal (posterior) horn dorsal root dorsal root entry zone entry zone intermediolateral intermediolateral cell column cell column white matter white matter gray matter gray matter

Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

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Page 1: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

dorsal (posterior) horndorsal (posterior) horn

dorsal rootdorsal rootentry zoneentry zone

intermediolateralintermediolateralcell columncell column

white matterwhite matter

gray mattergray matter

Page 2: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

ventral (anterior) hornventral (anterior) horn

white matterwhite matter

gray mattergray matter

motor neuronsmotor neurons

Page 3: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

multipolarmultipolarmotor neuronmotor neuron

nucleus w/nucleus w/nucleolusnucleolus

Nissl substanceNissl substance(RNA)(RNA)

Page 4: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

ventralventral(anterior)(anterior)

hornhorn

white matterwhite matter

gray mattergray matter

motormotorneuronsneurons

dorsal nucleusdorsal nucleus(of Clarke)(of Clarke)

dorsaldorsal(posterior)(posterior)

hornhorn

Page 5: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

nucleus w/nucleus w/nucleolusnucleolus

Nissl substanceNissl substance(RNA)(RNA)

neuropilneuropil

Page 6: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

nucleus w/nucleus w/nucleolusnucleolus

Nissl substanceNissl substance(RNA)(RNA)

neuropilneuropil

Page 7: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

white matterwhite matter

gray mattergray matter

dorsaldorsal(posterior)(posterior)

hornhornwhite matterwhite matter

Page 8: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter
Page 9: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

w

hite matter

white m

atter

molecular layermolecular layer

granule layergranule layer

blood vesselblood vessel

blood vessel

blood vessel

pia materpia mater

Page 10: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

white m

atter

white m

atter

molecular layermolecular layer

granule layergranule layer

blood vesselblood vessel

pia materpia mater

Purkinje cellsPurkinje cells

Page 11: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

molecular layermolecular layer

granule layergranule layer

blood vesselblood vessel

dendritesdendrites

nucleus w/nucleus w/nucleolusnucleolus Nissl substanceNissl substance

Page 12: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

white matterwhite matter

bloodbloodvesselvessel

Page 13: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

mol

ecul

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yer

mol

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laye

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laye

r

mul

tifor

m la

yer

mul

tifor

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tern

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idal

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Page 14: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

mol

ecul

ar la

yer

mol

ecul

ar la

yer

exte

rnal

gra

nule

laye

r

exte

rnal

gra

nule

laye

r

exte

rnal

pyr

amid

al la

yer

exte

rnal

pyr

amid

al la

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inte

rnal

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nule

laye

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idal

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rnal

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Page 15: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter
Page 16: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter
Page 17: Dorsal (posterior) horn dorsal root entry zone intermediolateral cell column white matter gray matter

multiform layermultiform layer

white matterwhite matter