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inferior colliculus
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Labeled anatomical diagram of the human brain in sagittal section, medial view, showing internal structures such as the corpus callosum, cerebellum, ventricles, brainstem, and other key regions.
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inferior colliculus

anatomy
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Labeled anatomical diagram of the human brain in sagittal section, medial view, showing internal structures such as the corpus callosum, cerebellum, ventricles, brainstem, and other key regions.
left cerebral hemisphere of the human brain Medial view of the left hemisphere of the human brain.

The inferior colliculus is a key auditory center located in the midbrain. It receives auditory fibers from lower brainstem nuclei and projects to the medial geniculate body, which is the thalamic relay for auditory information. This structure plays a role in processing sound, including aspects like pitch, loudness, and localization. It is part of the ascending auditory pathways that transmit sound information to the cerebral cortex for conscious perception. The midbrain itself is a relatively small part of the brainstem, situated between the forebrain and hindbrain, and is involved in various sensory and motor functions.123

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3 Britannica Sources
  1. human ear - Ascending pathways
  2. human nervous system - Midbrain
  3. midbrain

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