Stimulation of chemoreceptors causes peripheral vasoconstriction, splenic contraction, and an increased drive to breathe. Which statements regarding these changes are true, and which are false?
A. Peripheral vasoconstriction redirects blood (and O 2 ) to vital organs. B. This helps conserve O 2 during breath-hold. C. Splenic contraction increases the O 2 carrying capacity of the blood through release of RBCs. D. Stimulation of chemoreceptors increases the drive to breathe to replenish O 2 in the blood, and remove CO 2 from the body.