Stimulation of the aortic baroreceptors results in
A) stimulation of the cardioacceleratory center in the brain.
B) increased sympathetic stimulation of the heart.
C) increased activity by the parasympathetic nervous system.
D) stimulation of the vasoconstrictive center.
E) increased heart rate.
Answer: C
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Dalton's law states that
A) gas volume and temperature are directly proportional. B) gas volume and pressure are inversely proportional. C) the volume of gas that will dissolve in a solvent is proportional to the solubility of the gas and the gas pressure. D) in a mixture of gases such as air, the total pressure is the sum of the individual partial pressures of the gases in the mixture. E) gas pressure is inversely proportional to gas volume.
During exercise, ventilation initially increases due to
A. abrupt changes in metabolism or blood gases. B. limb movements that stimulate the respiratory center. C. increased blood CO2 levels, stimulating baroreceptors. D. decreased blood O2 levels, stimulating chemoreceptors. E. decreased blood pH levels, stimulating baroreceptors.
Which cell develops into mature neutrophils?
A) band (stab) cell B) lymphoblast C) monoblast D) monocyte