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…

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…

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

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

Direct spinothalamic pathway: the neospinothalamic tract. The peripheral processes of these dorsal root ganglion cells end as receptors sensing pain, temperature, and simple tactile sensations. The central processes of these dorsal root ganglion cells synapse with the neurons of the nucleus proprius. The axons of these second-order neurons cross via the anterior white commissure, enter the contralateral white matter, ascend in the lateral funiculus, and synapse on third-order neurons located…

Direct spinothalamic pathway: the neospinothalamic tract. The peripheral processes of these dorsal root ganglion cells end as receptors sensing pain, temperature, and simple tactile sensations. The central processes of these dorsal root ganglion cells synapse with the neurons of the nucleus proprius. The axons of these second-order neurons cross via the anterior white commissure, enter the contralateral white matter, ascend in the lateral funiculus, and synapse on third-order neurons located…

The connections of the lateral spinothalamic tract, including those made with the reticular formation. RETICULAR SYSTEM AND STT

The connections of the lateral spinothalamic tract, including those made with the reticular formation. RETICULAR SYSTEM AND STT

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

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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