21. The substantia nigra is located in the midbrain . 22. IC are large auditory nuclei on the right and left sides of the midbrain . 23. It may also indicate damage to the midbrain . 24. The most common symptom affecting the CNS is an intracranial hemangioma in the midbrain . 25. Another sign of stenosis is deformation of the midbrain , which can be severe. 26. A third part becomes the midbrain , where important relay stations and control centers develop. 27. In the insect brain, the peduncles of the mushroom bodies extend through the midbrain . 28. The MHB controls midbrain and cerebellum development. 29. Electrical stimulation of the periaqueductal gray ( PEG ) region of the mammalian midbrain elicit vocalizations. 30. A visual midbrain plays a more important role than the visual cortex like in some rodents.
