10 Questions
What is the main functional cell of the nervous system?
Neuron
What is the name of the electrical signal in the axon that results when the membrane potential reaches threshold?
Action potential
What are the gaps in the myelin sheath that help with the transmission of the nerve impulse called?
Nodes of Ranvier
Which type of nerves carry impulses only toward the central nervous system?
Sensory (afferent) nerves
What causes the resting membrane potential in a non-stimulated nerve cell?
Imbalances in ion concentrations from inside to outside of cells
What is the function of the myelin sheath in the nervous system?
Provides electrical insulation and increases the speed at which action potentials propagate
Which part of the neuron receives chemical messages from other neurons?
Dendrite
What is the global function of the nervous system?
Detects and processes information
Which part of the neuron sustains all processes within the cell body?
Cell terminal
What is the role of the axon in the neuron?
Conducts action potentials
Test your knowledge of the functional anatomy of the nervous system, including the types of neurons, global functions, reflexes, synaptic integration, graded potential, and bodily responses activation.
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