What type of postsynaptic potential would be more likely to promote an action potential—an IPSP or EPSP? Explain
What will be an ideal response?
A small, local depolarization called an EPSP moves the membrane potential closer to threshold. If threshold is reached, an action potential is triggered. A small, local hyperpolarization known as an IPSP moves the membrane potential farther from threshold. Threshold is critical for achievement of an action potential. Thus, an EPSP is more likely to promote an action potential while an IPSP is less likely to promote an action potential.
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What part of the midbrain influences the activity of the entire nervous system?
A) cerebral peduncles B) substantia nigra C) superior colliculi and inferior colliculi D) red nuclei E) reticular activating system (RAS), a part of the reticular formation
Phenotype is the result of genetic influences only.
Answer the following statement true (T) or false (F)
Visual pathways include axons that project from the optic tracts to the superior colliculi
Indicate whether this statement is true or false.
Proprioception is the awareness of the body's position in space
Indicate whether the statement is true or false