Torus semicircularis

Torus semicircularis is a part of the midbrain in the brainstem of vertebrates, including humans. It is a paired structure, with one located in each hemisphere of the brain. The torus semicircularis is involved in the processing of auditory information.

Structure

The torus semicircularis is located in the dorsal part of the midbrain, near the tectum. It is a layered structure, with each layer receiving different types of auditory information. The outermost layer receives input from the cochlea, while the innermost layer receives input from the inferior colliculus, another part of the auditory pathway.

Function

The primary function of the torus semicircularis is to process auditory information. It receives input from various parts of the auditory pathway and integrates this information to create a complete picture of the auditory environment. This includes determining the location of sounds in space, as well as recognizing and identifying different sounds.

Clinical significance

Damage to the torus semicircularis can result in a variety of auditory deficits, including difficulty locating sounds in space and difficulty recognizing and identifying sounds. However, because the torus semicircularis is located deep within the brain, it is rarely damaged in isolation. Instead, damage to the torus semicircularis is usually part of a larger pattern of brain damage.

See also

• Midbrain
• Brainstem
• Auditory system