Answer:
The correct answer to the question: Tyree´s improved attention and concentration are likely due to increased myelination in the:___, would be: the gigantocellular reticular nuclei in his Reticular formation.
Explanation:
The Reticular Formation is a portion of the brain that is found in the brainstem, between the midbrain and the medulla oblongata. This cluster of neurons, which are not necessarily all part of the reticular formation, but might be located in other parts of the brain with which the reticular formation interacts with, form a sort of pathway that interconnects several parts of the brain itself and the spinal cord. The actual region is divided into three parts: the raphe-nuclei, responsible for serotonin production and mood modulation, the gigantocellular reticular nuclei, which controls motor function and coordination and the parvocellular nuclei, which regulates the process of exhalation. In Tyree, then, the specific portion in his brain, inside the reticular formation, that is experiencing particular myelination as he develops is the gigantocellular reticular nuclei.
