Tectum is a term used in anatomy to describe a specific anatomical structure in various parts of the body.

1. Tectum in the Brain

In the brain, the tectum refers to the dorsal region of the midbrain. It is responsible for processing visual and auditory stimuli and plays a vital role in orienting an individual’s attention towards relevant sensory information.

2. Tectum in the Mesencephalon

The mesencephalic tectum, also known as the superior colliculus, is a structure located in the midbrain. It is involved in visual processing, particularly in the coordination of eye movements and the integration of visual information with other sensory modalities.

3. Tectum in the Rhombencephalon

Within the rhombencephalon or hindbrain, the tectum refers to the roof of the fourth ventricle. This region contributes to the coordination of motor movements and is involved in maintaining balance, postural control, and coordination of voluntary muscle activity.

4. Tectum in the Ears

In the auditory system, the tectum refers to the posterior part of the midbrain called the inferior colliculus. It is responsible for processing auditory information, specifically the initial stages of sound localization and integration of different sound frequencies.