Glutamate can be toxic to neurons because
a. NMDA receptors allow calcium into a cell, and excess calcium can stimulate harmful levels of enzyme activity.
b. NMDA receptors block the movement of calcium into a cell, preventing the release of other neurotransmitters.
c. it blocks receptors for other types of neurotransmitters, preventing effective communication between cells.
d. its breakdown in the synaptic gap produces harmful free radicals.
a
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Myelination of the frontal lobes is much greater in adults aged 23 to 30 than in youth between the ages of 12 and 16. Unfortunately, the adolescent’s white matter is more susceptible than an adult’s to damage from ____.?
a. ?schizophrenia b. ?unprotected sex c. ?marijuana use d. ?binge drinking
According to your text, _______ are a good training method for teaching analysis and synthesis skills
a. critical incidents b. case studies c. computer assisted instruction d. programmed instruction
Tyler is an off-duty EMT. He is more likely to stop and help with a car accident than his spouse Stephen, who is an English teacher. What makes Tyler more likely to stop?
A. His training makes him more likely to notice a wreck. B. He is hypervigilant looking for emergencies. C. EMTs are general more responsible than English teachers. D. He is more likely to know how to help than Stephen.
Height during the first year of life increases ____
a. very quickly in the beginning and slows down b. slowly in the beginning and increases very quickly c. at a slow even rate d. unevenly in spurts