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Ch. 12 The Central Nervous System

Chapter 12, Problem 12.5a

Mark the following statements about the cerebral cortex as true or false. If a statement is false, correct it to make a true statement.


a. The neocortex is the 'newest' component of the cerebral cortex from an evolutionary perspective.

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Hey, everyone. Let's take a look at this question together which of the following statements about the neocortex of the cerebral cortex is true. Is it answer choice? A? It is only present in the human brain. Answer choice B it comprises the smallest part of the cerebral cortex. Answer choice C it influences cognitive ability or answer choice D all of the above. Let's work this problem out together to try to figure out which of the following answer choices contains a true statement about the neocortex of the cerebral cortex. So in order to solve this question, we have to recall what we have learned about the neocortex of the cerebral cortex to determine which of the following answer. Choices is a true statement starting off with answer choice A which says that it is only present in the human brain. Well, we know that the neocortex of the cerebral cortex is not exclusive to the human brain. So answer choice A is a false statement since the neocortex of the cerebral cortex is also present in other mammals playing a significant role in their cognitive functions. So answer choice A is incorrect. Next, we have answer choice B which says that it comprises the smallest part of the cerebral cortex. Well, we know that the neocortex of the cerebral cortex does not comprise the smallest part of the cerebral cortex. Making answer choice B A false statement as well. Since the neocortex of the cerebral cortex comprises a substantial and important part of the cerebral cortex as it is the outermost and most extensive layer of the cerebral hemisphere. So answer choice B is also incorrect. And lastly, we have answer choice C which says that it influences cognitive ability, which we know that the neocortex of the cerebral cortex is a critical part of the brain which influences cognitive ability. So answer choice C is a true statement as the neocortex of the cerebral cortex is associated with higher order functions such as sensory perception, motor commands, spatial reasoning, conscious thought and language. So answer choice C contains a true statement about the neocortex of the cerebral cortex. So answer choice C is the correct answer and all other answer choices are incorrect. I hope you found this video to be helpful. Thank you and goodbye.