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Thalamic Nuclei
Different nuclei of the thalamus
| Question | Answer |
|---|---|
| Somatosensation from face through trigeminal lemniscus; reciprocally connected to face area of post central gyrus (sensory cortex) | VPM |
| Receives taste relays from nucleus of the solitary tract; reciprocally connected with anterior part of insula | VPMpc |
| Somatosensation from limbs and trunk via STT and medial lemniscus; reciprocally connected with non-face parts of post-central gyrus (sensory cortex) | VPL |
| Transmits vestibular info to inferior parietal lobe | VPI |
| Receives visual input from retinal ganglion cells from ipsilateral temporal retina and contralateral nasal retina; reciprocally connected with primary visual cortex in the occipital lobe (calcarine fissure) | LGN |
| Receives auditory input from the inferior colliculus; reciprocally connected with Heschl's gyrus (auditory cortex) of temporal lobe | MGN |
| Receives input from ipsilateral substantia nigra; reciprocally connected to premotor cortex, frontal eye fields, cingulate and parietal cortices; primarily concerned with eye, head, and neck movements | medial part of VA |
| Receives input from ipsilateral globus pallidus; reciprocally connected with trunk and limb regions of premotor cortex | lateral part of VA |
| Receives crossed output of cerebellum via dentato-rubro-thalamic pathway; reciprocally connected with pre-central gyrus (motor cortex) | VL |
| Most highly developed in humans; reciprocally connected with frontal and orbital cortices; lesions result in apathy, memory changes, and difficulty switching tasks | MD |
| Complex structure highly developed in humans; reciprocally connected with second order sensory and multimodal association cortices in parietal, temporal, and occipital lobes as well as cingulate and frontal cortices | Pulvinar |
| Receives input from parahippocampal region through fornix and mammillary bodies via MTT; reciprocally connected with cortex of cingulate gyrus | Anterior Group |
| Receives input from parahippocampal region via fornix; reciprocally connected with retrosplenial cortex | LD |
| As a group, project diffusely to cortex and striatum; most nuclei receive nociception from midbrain; strong input from locus ceruleus (noradrenalin) and midbrain raphe (serotonin); involved in general cortical arousal | Midline |
| Reciprocally connected with the striatal portions of basal ganglia; receive non-reciprocal input from motor input; strong input from ARAS; lesions of centromedian nucleus lead to unilateral motor neglect | Intralaminar |
Created by:
kmkremer
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