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48 Cards in this Set
- Front
- Back
In the central portion of the thalamus, what does the IML descend and completely surround?
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Centromedian Nucleus (CM)
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This nucleus extends medially from the centromedian nucleus at the central portion of the thalamus and surrounds the fasiculus retroflexus?
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Parafasicular nucleus (PF)
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At the coronal section through the central portion of the thalamus, what does the lateral nuclear group consist of dorsally?
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LD (lateral dorsal nucleus) and LP (lateral posterior nucleus)
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At the coronal section through the central portion of the thalamus, what does the lateral nuclear group consist of ventrally?
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VPL (ventral posterior lateral nucleus) and VPM (ventral posterior median nucleus)
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The lateral dorsal (LD) nucleus recieves afferent connections from what?
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Medial Parietal and limbic regions
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The lateral dorsal (LD) nucleus sends efferents to what two structures?
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medial parietal and posterior cingulate gyrus of the limbic lobe
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The lateral posterior (LP) thalamic nucleus recieves afferents from what?
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superior parietal lobule
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Where does the lateral posterior thalamic nucleus send efferents too?
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Superior Parietal Lobule
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Afferents from the medial leminiscus and spinothalamic tracts enter which thalamic nucleus?
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VPL
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Where does efferent fibers from the VPL thalamic nucleus go to?
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Primary and secondary somatosensory cortex
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What tract synapses in the VPM thalamic nucleus?
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Trigeminothalamic tract
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Axons from the solitary nucleus and parabrachial nucleus travel in what tract to the VPMpc thalamic nuclei?
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C.T.T (taste)
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Efferents from which thalamic nucleus synapse on the parietal operculum
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VPMpc
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Rostral intralaminar nuclei receive afferents from what?
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reticular formation (ARAS) and spinothalamic tract
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Rostral intralaminar nuclei send efferents to what?
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caudate and wide regions of cerebral cortex
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CM-PF thalamic nucleus receive afferent fibers from what?
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Medial Pallidal Segment
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CM-PF send efferents to what?
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Caudate, Putamen, and wide regions of cerebral cortex
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This is the largest nucleus of the thalamus and is found in the caudal thalamus at the coronal section through the posterior commissure?
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Pulvinar
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These two bodies are situated just below the pulvinar?
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LGB and MGB
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This nucleus is seen in all levels of the thalamus and is found between the external medullary lamina and internal capsule?
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Reticular Nucleus
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Afferents from this structure synapse in the pulvinar and then go to widespread areas of the cortex?
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Association Cortex
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What afferents project to the inferior part of the pulvinar?
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Superficial layers of the superior colliculus
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Efferents from the inferior part of the pulvinar go to what areas?
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Visual association cortex (V2 and V3) (retinotopic projection)
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Afferents from what go to the medial geniculate body?
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Inferior colliculus via the brachium of the inferior colliculus
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Efferents from the MGB go to which two structures?
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Primary auditory cortex (Transverse gyri of heschl) and Secondary Auditory Cortex
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Ganglion cells in the retina send fibers to what structure in the thalamus?
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Lateral geniculate body
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Which layers of the lateral geniculate body contain crossed fibers from the ganglion cells of the retina?
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1,4,6
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Where does the lateral geniculate body send efferent fibers to?
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Primary visual cortex
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The reticular nucleus recieves afferents from what?
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specific and non-specific thalamic nuclei and cerebral cortex
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The reticular nucleus sends efferents to what?
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specific and non-specific thalamic nuclei
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The function of this nucleus, working in parallel with the anterior nuclear group, is to integrate sensory information with autonomic function?
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lateral Dorsal Nucleus (LD)
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This nucleus is involved with somatic sensations from the body; discrimination, proprioception, light touch, pain and temperature?
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Ventral Posterior Lateral
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This nucleusis involved with somatic sensations from the head; discrimination, proprioception, light touch, pain and temperature?
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Ventral Posterior Medial
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This nucleus is involved with taste?
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VPMpc
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What is the function of the intralaminar rostral intralaminar nucleus?
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Part of ARAS - arousel ; Affective component of pain
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The function of this/these nucleus is motor control of basal ganglia?
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Centromedian Nucleus AND Parafasicular
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This nucleus functions to mediate visually guided movements?
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Lateral Posterior
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This nucleus functions in tracking visual stimuli and is involved with visual attention?
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Pulvinar
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Which thalamic nuclei is involved with audition?
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MGB
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What is the funciton of the LGB
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Vision
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This nucleus contains GABA and gates relay information through the thalamus?
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Reticular nucleus
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VL (Vla and VLp) receives information from (basal ganglia, cerebellum, both, neither)?
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Both
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VA sends efferents to (supplementary motor cortex, primary motor cortex, both, neither)
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Supplementary motor cortex
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VPL recieves afferents from (medial leminiscus, STT, Both, Neither)
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Both
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Parietal Operculum receives fibers from the (VPL, VPMpc, both, neither)
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VPMpc
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Trigeminothalamic tract synapse on the (VA, VPL, Both, Neither)
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Neither (VPM)
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Amygdala sends fibers to the (LD, DM, Both, Neither)?
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DM
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DM sends efferents to the (Primary motor cortex, prefrontal cortex, both, neither)?
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Prefrontal Cortex
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