The function and process of a neuron’s refractory period.
Explain the function and process of a neuron’s refractory period. Describe how the brain transports essential chemicals. Describe the main properties of neuropeptides (neuromodulators).
The function and process of a neuron’s refractory period
Short essay answers to 10 questions
Complete 10 short answer essay questions which focus on the text chapters. Answer the questions clearly students will answer each question thoroughly and completely, providing examples where required.
Answer the questions below in your Midterm exam.
Firstly, explain the function and process of a neuron’s refractory period.
Secondly, describe how the brain transports essential chemicals.
Thirdly, describe the main properties of neuropeptides (neuromodulators).
Fourthly, describe the basic functions and components of the autonomic nervous system.
Further, describe the major brain mechanisms of eating and hunger.
Additionally, describe the key functions of the major pathways in the visual cortex.
Also, describe the behavioral effects of pheromones in humans.
Moreover, describe the nature of Parkinson’s disease. Include a discussion of its causes and possible treatments.
Describe the relationship of conscious decisions and movements. What may this relationship reveal about consciousness?
Finally, describe how light resets the SCN.
The depolarization that produces Na+ channel opening also causes delayed activation of K+ channels and Na+ channel inactivation, leading to repolarization of the membrane potential as the action potential sweeps along the length of an axon (see Figure 3.12). In its wake, the action potential leaves the Na+ channels inactivated and K+ channels activated for a brief time. These transitory changes make it harder for the axon to produce subsequent action potentials during this interval, which is called the refractory period. Thus, the refractory period limits the number of action potentials that a given nerve cell can produce per unit time. As might be expected, different types of neurons have different maximum rates of action potential firing due to different types and densities of ion channels.
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