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Questions and Answers
Which of the following are classifications of neurons?
Which of the following are classifications of neurons?
What are Anaxonic neurons?
What are Anaxonic neurons?
Small and have no anatomical features that distinguish dendrites from axons; found in brain and sense organs.
What characterizes Bipolar neurons?
What characterizes Bipolar neurons?
Two distinct processes: one dendrite process that branches extensively at its distal tip and one axon with the cell body between the two.
Describe Unipolar neurons.
Describe Unipolar neurons.
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What are the defining features of Multipolar neurons?
What are the defining features of Multipolar neurons?
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What role do Sensory neurons play?
What role do Sensory neurons play?
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What is the function of Somatic sensory neurons?
What is the function of Somatic sensory neurons?
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What do Visceral sensory neurons monitor?
What do Visceral sensory neurons monitor?
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What is the function of Motor neurons?
What is the function of Motor neurons?
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Describe Interneurons.
Describe Interneurons.
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What are Neurogila?
What are Neurogila?
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Anaxonic neurons are a type of functional neuron.
Anaxonic neurons are a type of functional neuron.
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Match the following types of neurons to their categories:
Match the following types of neurons to their categories:
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Study Notes
Structural Classification of Neurons
- Neurons are classified into four main types: Anaxonic, Bipolar, Unipolar, and Multipolar.
Anaxonic Neurons
- Small neurons lacking distinct dendrites and axons.
- Primarily located in the brain and sensory organs.
Bipolar Neurons
- Characterized by two distinct processes: one extensive dendrite and one axon, with the cell body situated between them.
- Commonly found in sensory organs.
Unipolar Neurons
- Feature a single continuation of the process where dendrites and axon are connected; the cell body is offset to one side.
- Typically associated with sensory neurons in the peripheral nervous system (PNS).
Multipolar Neurons
- Have multiple dendrites and a single axon.
- Predominantly found in motor neurons that control skeletal muscles.
Sensory Neurons
- Make up the afferent division of the PNS, transmitting information from sensory receptors to the central nervous system (CNS).
Somatic Sensory Neurons
- Specialized to monitor external environments and the body’s positions in space.
Visceral Sensory Neurons
- Focused on monitoring internal conditions and the status of various organ systems.
Motor Neurons
- Form the efferent division of the PNS, carrying commands from the CNS to peripheral effectors in tissues and organs.
Interneurons
- Mainly located in the brain and spinal cord.
- Play a crucial role in processing sensory information and coordinating motor activities.
Neuroglia
- Supportive cells that protect and assist neurons in the nervous system.
Structural vs Functional Neurons
- Structural classifications include Anaxonic, Bipolar, Unipolar, and Multipolar.
- Functional classifications encompass Sensory, Motor, and Interneurons.
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Description
This quiz covers the structural classification of neurons, detailing the characteristics of Anaxonic, Bipolar, Unipolar, and Multipolar neurons. Test your knowledge on their definitions and unique features. Ideal for students studying neuroscience or related fields.
