BIOS 252 WEEK 4 2024 COMPLETE QUESTIONS AND ANSWERS

BIOS 252 WEEK 4 2024 COMPLETE QUESTIONS AND ANSWERS Structural and Functional Organization of the Brain All ventricles of the brain are paired, except for the fourth ventricle. True False The ventricles are found deep within the brain and serve as cavities for the flow of CSF. The most superior ventricles are the lateral ventricles, and these are the only paired ventricles. Next in sequence is the third ventricle followed by the fourth ventricle, neither of which are paired. Unlike the spinal cord, the outer portion of the brain is made up of matter, while the inner portion is made up of matter. Gray, White Lipid, Protein White, Gray Muscular, Nervous The spinal cord’s neural tissue is arranged a bit differently than that of the brain. The spinal cord is made up of white matter superficially with gray matter found deeper within. The brain is arranged oppositely. Superficially, it is dominated by gray matter and deeper within the brain, we find white matter. Recall that white matter is unmyelinated axons whereas gray matter is made up of myelinated axons.