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There are two main cell types in the ventral subnucleus of the medial geniculate body (VMGN): Thalamocortical relay cells (or principal neurons): The dendritic input to these cells comes from two sets of dendritic trees oriented on opposite poles of the cell. The long axis of the relay cells lie parallel to each other running superior ...
The lemniscal classical auditory pathway is tonotopically organized and consists of the central nucleus of the inferior colliculus and the ventral medial geniculate body projecting to primary areas in the auditory cortex. The non-primary auditory cortex receives inputs from the extralemniscal non-classical auditory pathway, which shows a ...
oral part of the ventral posterolateral nucleus [40] caudal part of the ventral posterolateral nucleus [41] ventral posteromedial nucleus [42] ventral posteroinferior nucleus [43] (probably same as ventral intermediate nucleus) metathalamus [44] medial geniculate body [45] lateral geniculate body [46] thalamic reticular nucleus [47] part of the ...
The inferior colliculus also receives descending inputs from the auditory cortex and auditory thalamus (or medial geniculate nucleus). [3] The medial geniculate body (MGB) is the output connection from inferior colliculus and the last subcortical way station. The MGB is composed of ventral, dorsal, and medial divisions, which are relatively ...
This has led to the assumption that they may be involved in general functions such as alerting. [1] However, anatomical connections might suggest more specific functions, with the paraventricular and paratenial nuclei involved in viscero-limbic functions, and the reuniens and rhomboid nuclei involved in multimodal sensory processing.
The acoustic radiations or auditory radiations are structures found in the brain, in the ventral cochlear pathway, a part of the auditory system. [1] [2] Acoustic radiation arising in the medial geniculate nucleus and end in primary auditory cortex (transverse temporal gyri). Lesions to the auditory radiations could be a cause of cortical ...
According to the 42th Edition of Gray's Anatomy, the thalamogeniculate arteries supply the posterior thalamus, and medial geniculate nucleus. [2] According to the Medical Dictionary of the French Academy of Medicine, it supplies the ventral lateral nucleus of thalamus, and the geniculate nuclei. [1]
The region separated medially by the medial lamina is the Lateral region (L). Almost separated from the thalamic mass are the Geniculate bodies (G). The remaining isothalamus is made up of the medial region (M, medial to the medial lamina) and posteriorly, with no complete separation in man, of the posterior regio or pulvinar (Pu).