Which of the Following Statements About the Response of Arteriolar $\mathrm { P } _ { \mathrm { o } _ { 2 } }$

question 89

Multiple Choice

Which of the following statements about the response of arteriolar smooth muscle to changing oxygen partial pressures is true?

• A)Both systemic and pulmonary arterioles respond to a decrease in by constricting
• B)Both systemic and pulmonary arterioles respond to a decrease in \(\mathrm { P } _ { \mathrm { o } _ { 2 } }\) by dilating
• C)Systemic arterioles respond to a decrease in \(\mathrm { P } _ { \mathrm { o } _ { 2 } }\) by dilating but pulmonary arterioles constrict in response to decreased \(\mathrm { P } _ { \mathrm { o } _ { 2 } }\)
• D)Systemic arterioles respond to a decrease in by constricting but pulmonary arterioles dilate in response to decreased \(\mathrm { P } _ { \mathrm { o } _ { 2 } }\)
• E)None of the choices are true

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Archie Carroll

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