Midbrain tectum
（重定向自Tectal）
![](/Images/godic/202502/15/Gray6853621.png")
The tectum (Latin: roof) is a region of the brain, specifically the dorsal part of the mesencephalon (midbrain). This is contrasted with the tegmentum, which refers to the region ventral to the ventricular system. The tectum is responsible for auditory and visual reflexes.