cross-section of spinal cord diagram showing major spinal tracts | Return to HOMEPAGE

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Spinal cord tracts - English - Dorsal spinocerebellar tract - Wikipedia, the free encyclopedia

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Indirect spinothalamic pathways. These pathways mediate the affective and arousal components of pain, temperature, and simple tactile sensations. (A) The ascending axons in the paleothalamic tract synapse in the brainstem reticular formation and neurons in midline and intralaminar thalamic nuclei, which then project diffusely to the cerebral cortex including the cingulate gyrus. (B) In the spinoreticular tract, one group of ascending axons projects to the medullary reticular formation, and…

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localization of brainstem lesions - oculomotor and trochlea nuclei, abducens and facial nuclei, hypoglossal nucleus, dorsal motor nucleus, nucleus ambiguus, medial lemniscus, lateral spinothalamic tract, corticospinal tract

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Substantia gelatinosa of Rolando (SGR) corresponds to Rexed lamina II. The SGR is 1 point (the nucleus proprius being the other) where 1st order neurons of the spinothalamic tract synapse. Many μ- & к-ORs, presynaptic & postsynaptic, are found on these nerve cells; they can be targeted to manage pain. C fibers terminate at this layer. Some A delta fibers also terminate in the SGR, mostly via axons passing through the area of the nucleus proprius. μORs (μ-Opioid Receptors) are found in the…

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