18 Questions
Which part of the nervous system is responsible for delivering information about the internal and external environment to the central nervous system?
Afferent division of the peripheral nervous system
Which type of neurons are found within the brain and spinal cord, analyzing sensory input and organizing motor outputs?
Interneurons
What is the term used to describe the ability of the plasma membrane to conduct electrical impulses?
Excitability
Which type of synapse involves the release of neurotransmitters at the presynaptic membrane and binding to receptor proteins on the postsynaptic membrane?
Chemical synapse
What is the term used to describe the site of cellular or neuronal communication?
Synapse
Which division of the peripheral nervous system is responsible for stimulating the activity of the peripheral motor or organ systems?
Efferent division
Which of the following structures surrounds the central nervous system (CNS)?
Cerebrospinal fluid
Which cell type composes the neuroglia of the peripheral nervous system (PNS)?
Satellite cells and Schwann cells
What is the function of Schwann cells in the PNS?
Wrap around part of a single axon
Which type of neuron is the most common in the central nervous system (CNS)?
Multipolar
Which of the following describes the structure of a pseudounipolar neuron?
Cell body lies outside the plane of the dendrite and axon
What is the functional unit of the nervous system that transmits information through electrical impulses?
Neuron
What is the primary function of astrocytes?
Support and protect the neurons
Which type of neuroglial cell is responsible for forming a myelin sheath around axons?
Oligodendrocytes
What is the primary role of microglia in the central nervous system?
Act as phagocytic cells, engulfing debris and waste
If a neuron is damaged, which type of neuroglial cell is mainly involved in repairing the nervous tissue?
Astrocytes
Which type of neuroglial cell lines the ventricles of the brain and central canal of the spinal cord?
Ependymal Cells
What is the main function of oligodendrocytes in relation to axons?
Create a myelin sheath around axons
Test your knowledge of the passageways filled with cerebrospinal fluid, the protective functions of cerebrospinal fluid, and the organization of the neurons and neuroglia in the central and peripheral nervous system.
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