Midbrain - Brain & Cranial Nerves Midbrain * Contains...

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Midbrain * Contains the rostral end of the reticular formation (which results in the loss of consciousness or coma if impaired). Tectum - rooflike region dorsal to the aqueduct consisting of the Corpora Quadrigemina Corpora Quadrigemina (four twins) * The dorsal or posterior part has the superior colliculus , which is important for visual system reflexes * The inferior colliculus , which is important for auditory system function. Midbrain * The ventral or anterior part has the cerebral peduncle , which is a huge bundle of axons traveling from the cerebral cortex into/ through the brainstem; fibers are important for voluntary motor function . * Red nucleus- so named because they have a pinkish color in fresh Brain specimens, because of an abundant Blood supply. The red nuclei aid in the unconscious regulation and coordination of motor activities. Midbrain Substantia nigra- * A nuclear mass between the Tegmentum and Cerebral Peduncles, is a pigmented region of the midbrain with cytoplasmic Melanin Granules that give it a dark gray-to-black
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Midbrain - Brain & Cranial Nerves Midbrain * Contains...

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