Medial geniculate nucleus

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Medial Geniculate Nucleus

The Medial Geniculate Nucleus (MGN or MgN), pronounced as /ˈmiːdiəl ˌdʒɛnɪkjʊlət ˈnjuːkliəs/, is a part of the auditory thalamus and represents the thalamic relay between the inferior colliculus and the auditory cortex.

Etymology

The term "Medial Geniculate Nucleus" is derived from the Latin words 'medius' meaning middle, 'geniculum' meaning little knee, and 'nucleus' meaning kernel or core. The term refers to the nucleus' position and shape in the brain.

Function

The Medial Geniculate Nucleus is primarily responsible for the transmission of auditory information from the inferior colliculus to the auditory cortex. It plays a crucial role in the perception and analysis of sounds.

Structure

The Medial Geniculate Nucleus is divided into three main parts: the ventral division, the dorsal division, and the medial division. Each division has a distinct role in processing auditory information.

Ventral Division

The ventral division of the Medial Geniculate Nucleus is primarily involved in the transmission of tonotopic information to the auditory cortex.

Dorsal Division

The dorsal division of the Medial Geniculate Nucleus is involved in the processing of spatial auditory information.

Medial Division

The medial division of the Medial Geniculate Nucleus is involved in the integration of auditory information with other sensory modalities.

Related Terms

External links

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