Fibers that connect areas of the cerebral cortex within the same hemisphere are
A) projection fibers.
B) commissural fibers.
C) association fibers.
D) all of the above.
Ans: C) association fibers.
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a. bind to receptors at synapses b. contribute directly to EPSPs c. contribute directly to IPSPs d. may influence neurotransmitter production e. speed up contiguous impulse conduction
Hormones from the adrenal medulla
A. are released in response to vagal stimulation. B. cause an increase in stroke volume. C. cause vasodilation in blood vessels of the skin. D. decrease the heart rate. E. are released in response to parasympathetic stimulation.
The relative concentration of potassium is
A) higher in plasma and glomerular filtrate than in urine. B) lower in urine than in plasma or glomerular filtrate. C) about equal in plasma, glomerular filtrate, and urine. D) higher in urine than in plasma or glomerular filtrate.
Waxes are a common lipid in marine food chains
Indicate whether the statement is true or false