Tectum is a part of the brain located in the midbrain, specifically within the mesencephalon. It plays a crucial role in processing visual and auditory information. The tectum is involved in reflexive responses to stimuli, helping organisms react quickly to their environment. The tectum consists of two main structures: the superior colliculus, which is primarily responsible for visual processing, and the inferior colliculus, which handles auditory information. Together, these structures help coordinate sensory input and motor output, contributing to behaviors such as tracking moving objects and orienting towards sounds.