Campbell Biology
Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 42, Problem 7TYU
Summary Introduction

Introduction: Respiratory gases play an important role in the respiration process. So their partial pressure takes into consideration for calculating the oxygen (PO2) and carbon dioxide (PCO2) levels the person inhaled and exhaled for respiratory disorders.

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Compared with the interstitial fluid that bathes active muscle cells, blood reaching these cells in arteries has a(A) lower osmotic pressure.(B) higher PO2.(C) lower pH.(D) higher PCO2.(E) greater bicarbonate concentration.
Answer both questions, they follow each other 1a)Which of the following is a function of the smooth muscle layer of arterioles during the transition to exercise because of the binding of the hormone epinephrine to a beta-adrenergic receptor? Group of answer choices a)Increase MAP as a response in a negative feedback arc b)Increase the distribution of blood to skeletal muscles during exercise c)Increase TPR d)Increased cardiac output e)Decreased heart rate   1b) Which of the following is a mechanism largely responsible for distributing more blood to Jose's skeletal muscles? Group of answer choices a)Decreased sympathetic stimulation of arteriolar smooth muscles b)Increased parasympathetic stimulation of arteriolar smooth muscles c)Autoflow regulation d)Active hyperemia
Which of the following is a circulatory adjustment to sustained moderate exercise? A. Constriction of the cutaneous circulation B) Decreased intestinal blood flow  C. Decreased venous return D. Increased renal blood flow E) Increased total peripheral vascular resistar
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