Multiple Choice
Sensory (ascending) pathways distribute information to which part of the central nervous system?
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13. The Peripheral Nervous System
Organization of Sensory Pathways
Problem 14
Textbook Question
Briefly describe the three stages of neuron development.
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Identify the three main stages of neuron development: proliferation, migration, and differentiation.
Explain proliferation as the process where neural stem cells divide to produce new neurons and glial cells.
Describe migration as the movement of newly formed neurons from their origin to their final position in the brain or spinal cord.
Clarify differentiation as the stage where neurons develop their specific structures and functions, such as forming axons and dendrites.
Summarize how these stages collectively contribute to the formation of a functional nervous system.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Neurogenesis
Neurogenesis is the first stage of neuron development where neural stem cells divide and differentiate into neurons. This process occurs primarily during embryonic development and establishes the initial population of neurons in the nervous system.
Neuronal Migration
Neuronal migration is the movement of newly formed neurons from their birthplace to their final position in the brain. This stage is crucial for proper brain organization and involves guided movement along cellular structures.
Neuronal Differentiation and Maturation
In this stage, neurons develop their specific structures such as axons and dendrites, and form synaptic connections. This maturation enables neurons to communicate effectively and integrate into neural circuits.
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