When you perform a strenuous exercise, __________.

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    excess carbon monoxide will stimulate the respiratory center of the brain so the rate of breathing increases
    oxygen will diffuse into the capillaries around the alveoli in addition to diffusion through the walls of the bronchi
    additional oxygen and carbon dioxide are exchanged through the skin to support the increase in metabolism
    respiratory muscles accessory to the diaphragm and rib muscles will contract to increase chest volume

asked May 30, 2013 in Biology by anonymous
    

1 Answer

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respiratory muscles accessory to the diaphragm and rib muscles will contract to increase chest volume
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)



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