Textbook Question
Mark the following statements as true or false. If the statement is false, correct it to make it a true statement.
Axons arise from the axon hillock.
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Ch. 12 The Central Nervous System
Chapter 12, Problem 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.
The neocortex is the 'newest' component of the cerebral cortex from an evolutionary perspective.
Verified step by step guidance1
Understand the term 'neocortex': The neocortex is the part of the cerebral cortex that is involved in higher-order brain functions such as sensory perception, cognition, and motor control. It is considered the 'newest' component of the cerebral cortex from an evolutionary perspective.
Evaluate the statement: The statement claims that the neocortex is the 'newest' component of the cerebral cortex from an evolutionary perspective. Based on anatomical and evolutionary studies, this is correct.
Mark the statement as true: Since the neocortex is indeed the newest component of the cerebral cortex, the statement is accurate and should be marked as true.
If the statement were false: To correct a false statement, you would need to identify the incorrect part and revise it. For example, if the statement incorrectly claimed that the neocortex was the oldest component, you would correct it to state that it is the newest component.
Conclude the process: Confirm the accuracy of the statement and ensure the reasoning aligns with established scientific knowledge about the cerebral cortex and its evolutionary development.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Cerebral Cortex
The cerebral cortex is the outermost layer of the brain, responsible for higher brain functions such as thought, perception, and voluntary movement. It is divided into several regions, each associated with different functions, including sensory processing, motor control, and cognitive abilities. Understanding its structure and function is crucial for analyzing statements about its components.
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Important Areas of the Cerebral Cortex
Neocortex
The neocortex is the most recently evolved part of the cerebral cortex, playing a key role in complex cognitive functions such as reasoning, language, and social behavior. It is characterized by its six-layered structure and is particularly prominent in mammals. Recognizing its evolutionary significance helps clarify statements regarding its development and function.
Evolutionary Perspective
An evolutionary perspective considers how structures and functions have developed over time through natural selection. In the context of the cerebral cortex, this perspective helps explain the emergence of the neocortex as a response to the increasing complexity of environmental challenges faced by mammals. Understanding this concept is essential for evaluating the accuracy of statements about brain evolution.
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Related Practice
Textbook Question
Mark the following statements as true or false. If the statement is false, correct it to make it a true statement.
Substances can move toward or away from the cell body through the axon via fast axonal transport.
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Textbook Question
An axon is best defined as a process that:
a. Transmits signals only toward the cell body.
b. Can generate action potentials.
c. Transmits signals only away from the cell body.
d. Cannot generate action potentials
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Textbook Question
Mark the following statements about the cerebral cortex as true or false. If a statement is false, correct it to make a true statement.
The cerebral cortex is composed of white matter.
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Textbook Question
Mark the following statements about the cerebral cortex as true or false. If a statement is false, correct it to make a true statement.
The primary visual cortex is located in the occipital lobe.
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Textbook Question
Mark the following statements about the cerebral cortex as true or false. If a statement is false, correct it to make a true statement.
The prefrontal cortex is located in the frontal lobe and is concerned with movement.
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