| substantia |
L. substantia, essence, substance, material. Substantia gelatinosa of Rolandi was first described by Luigi Rolando (1773 -1831), an Italian anatomist, as a formation of a peculiar transparent substance at the tip of the posterior horn of the spinal cord. Substantia nigra is a pigmented area in the mid-brain described by Soemmering (1755 -1830).
출처: www.vh.org/adult/provider/anatomy/MicroscopicAnato...
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| substantia nigra |
a small area of the brain containing a cluster of black-pigmented nerve cells that produce dopamine, which is then transmitted to the striatum.
출처: www.luhs.org/health/topics/glossary/s.htm
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| substantia nigra |
Tegmental nuclei involved in the sensorimotor system.
출처: www.ualberta.ca/~neuro/OnlineIntro/glossary.htm
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| substantia nigra |
Literally means "black substance." A part of the basal ganglia, located in the midbrain, that is rich in dopamine-producing nerve cells and the black pigment neuromelanin (hence its name). In Parkinson's the loss of nerve cells from this region leads to a dopamine deficit and subsequently to Parkinson's symptoms.
출처: www.michaeljfox.org/parkinsons/glossary.php
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| substantia gelatinosa |
The apical part of the posterior horn of grey matter of the spinal cord, extending its entire length and into the medulla oblongata. It is composed largely of very small nerve cells and its gelatinous appearance is due to its very low content of myelinated nerve fibers. It functions in the integration of sensory stimuli that give rise to the sensations of heat and pain. Previously also known as Rolando's (gelatinous) substance. [from Ln substantia = substance, New Ln gelatinosus = gelatinous].
출처: www.anatomist.co.uk/Terminology/Terminology2s.htm
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