12 Questions
What is the primary function of the Central Nervous System?
Central processing, storage, and interface between peripheral and central systems
What is the term for the self-regenerating property of nerve signals to prevent signal degradation?
Action potential
What is the function of the Cerebrum in the brain?
Memory, planning, and cognitive functions
What is the model that describes the ionic conductances and currents involved in the action potential?
Hodgkin-Huxley model
What is the term for the spread of current and voltage change around a depolarized section of the membrane?
Propagation of the AP
What is the function of the dendrites in a neuron?
To receive signals from other neurons
What is the result of the passive spread of electrical activity in the membrane?
The initiation of an action potential in adjacent sections
What is the role of the axon constant (A) in the equation for the longitudinal voltage variation?
It is a scaling factor for the transmembrane current
What is the relationship between the rate of accumulation of input and the rate of action potentials in a neuron?
The rate of action potentials is directly proportional to the rate of accumulation of input
What is the equation that describes the longitudinal current change in the axon?
ΔI_i(x) = I_m/Δx
What is the role of subthreshold stimulation in action potential propagation?
It allows for the passive spread of electrical activity
What is the equation that describes the relation between the longitudinal voltage variation and the transmembrane voltage?
v_i(x) = V/(ri + re)
Test your understanding of the nervous system, including its organization, functions, and components. Learn about the central nervous system, peripheral nervous system, and enteric nervous system, and how they work together to control movement, sensation, and more.
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