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Questions and Answers
Which type of neurons are most commonly unipolar in structure?
Which type of neurons are most commonly unipolar in structure?
- Bipolar neurons
- Motor neurons
- Sensory neurons (correct)
- Multipolar neurons
What is the main function of Schwann cells in the peripheral nervous system (PNS)?
What is the main function of Schwann cells in the peripheral nervous system (PNS)?
- Form myelin sheath around axons (correct)
- Surround, protect and support the cell body (soma)
- Secrete cerebrospinal fluid
- Maintain the blood-brain barrier
Which neuroglia type resembles macrophages in function?
Which neuroglia type resembles macrophages in function?
- Oligodendrocytes
- Astrocytes
- Microglia (correct)
- Ependymal cells
What are the factors that affect the speed of conduction of an action potential?
What are the factors that affect the speed of conduction of an action potential?
What do interneurons primarily do in the central nervous system (CNS)?
What do interneurons primarily do in the central nervous system (CNS)?
Which classification of neurons has a structure with one process fused together to form a continuous process?
Which classification of neurons has a structure with one process fused together to form a continuous process?
What is the main function of Oligodendrocytes in the central nervous system (CNS)?
What is the main function of Oligodendrocytes in the central nervous system (CNS)?
Which type of neurons are most commonly multipolar in structure?
Which type of neurons are most commonly multipolar in structure?
How do Schwann cells contribute to nerve conduction in the peripheral nervous system (PNS)?
How do Schwann cells contribute to nerve conduction in the peripheral nervous system (PNS)?
What is the primary role of Interneurons in the central nervous system (CNS)?
What is the primary role of Interneurons in the central nervous system (CNS)?
In terms of speed of signal conduction, which factor affects the signal speed by altering the temperature?
In terms of speed of signal conduction, which factor affects the signal speed by altering the temperature?
Which type of neurons have one dendrite fused together with the axon to form a continuous process?
Which type of neurons have one dendrite fused together with the axon to form a continuous process?
Schwann cells in the peripheral nervous system form multiple myelin sheaths on a single axon.
Schwann cells in the peripheral nervous system form multiple myelin sheaths on a single axon.
Astrocytes are the smallest and least numerous neuroglia in the central nervous system.
Astrocytes are the smallest and least numerous neuroglia in the central nervous system.
Ependymal cells secrete cerebrospinal fluid in the peripheral nervous system.
Ependymal cells secrete cerebrospinal fluid in the peripheral nervous system.
In the gray matter, integration of signals primarily occurs in the dendrites.
In the gray matter, integration of signals primarily occurs in the dendrites.
Unipolar neurons have two processes: one dendrite and one axon.
Unipolar neurons have two processes: one dendrite and one axon.
Increasing the temperature can slow down the speed of signal conduction in neurons.
Increasing the temperature can slow down the speed of signal conduction in neurons.
Motor neurons are typically unipolar in structure.
Motor neurons are typically unipolar in structure.
Oligodendrocytes in the central nervous system help maintain the blood-brain barrier.
Oligodendrocytes in the central nervous system help maintain the blood-brain barrier.
Agonist drugs inhibit the effect of a neurotransmitter.
Agonist drugs inhibit the effect of a neurotransmitter.
Interneurons primarily send information directly to effectors like muscles and glands.
Interneurons primarily send information directly to effectors like muscles and glands.
What is the main function of microglia in the CNS?
What is the main function of microglia in the CNS?
Describe the structure of a unipolar neuron.
Describe the structure of a unipolar neuron.
How do astrocytes contribute to the CNS?
How do astrocytes contribute to the CNS?
What are the two types of neuroglia found in the PNS?
What are the two types of neuroglia found in the PNS?
What is the primary function of ependymal cells in the CNS?
What is the primary function of ependymal cells in the CNS?
Explain the role of oligodendrocytes in the CNS.
Explain the role of oligodendrocytes in the CNS.
What is the primary function of satellite cells in the PNS?
What is the primary function of satellite cells in the PNS?
How does the amount of myelination affect the speed of action potential conduction?
How does the amount of myelination affect the speed of action potential conduction?
What is the primary role of interneurons in the CNS?
What is the primary role of interneurons in the CNS?
What are the three factors that affect the speed of conduction of an action potential?
What are the three factors that affect the speed of conduction of an action potential?
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