Medial geniculate nucleus
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
- Medical encyclopedia article on Medial geniculate nucleus
- Wikipedia's article - Medial geniculate nucleus
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