1014 Systems Coupling Summary

Which of the following is a mechanism that increases oxygen uptake by muscles during exercise?

Decreased pulmonary blood flow

Decreased cardiac output

Constriction of selected peripheral vascular beds (correct)

Decreased extraction of O2 from blood perfusing the muscles

What is the relationship between pulmonary blood flow and oxygen uptake from the alveoli?

They are directly proportional (correct)

They are unrelated

They are inversely proportional

Pulmonary blood flow has no effect on oxygen uptake

What is the formula for minute CO2 output?

CO2 = E × PaCO2/PB

CO2 = A × PaCO2/PB (correct)

CO2 = E × PaO2/PB

CO2 = A × PaO2/PB

What is the formula for minute alveolar ventilation?

A = E/VT Signup and view all the answers

What is the relationship between minute ventilation and CO2 output during moderate work intensities?

They are directly proportional Signup and view all the answers

What is the effect of metabolic acidosis on ventilation during heavy and very heavy work intensities?

Increases ventilation Signup and view all the answers

What is the formula for minute alveolar CO2 partial pressure?

PaCO2 = E × CO2/PB Signup and view all the answers

What is the effect of heavy exercise on the increase in cardiac output?

It is relatively small compared to the increase in metabolic rate Signup and view all the answers

What is the effect of increased extraction of O2 from the blood perfusing the muscles during exercise?

Increased oxygen uptake by the muscles Signup and view all the answers

What is the effect of metabolic acidosis on ventilation during moderate work intensities?

Has no effect on ventilation Signup and view all the answers

What is the effect of recruitment and vasodilation of pulmonary blood vessels during exercise?

Increases pulmonary blood flow Signup and view all the answers

What is the effect of minute ventilation on CO2 output during exercise?

Increases CO2 output Signup and view all the answers

Which of the following is a mechanism that increases oxygen uptake by muscles during exercise?

Constriction of selected peripheral vascular beds Signup and view all the answers

What is the relationship between pulmonary blood flow and oxygen uptake from the alveoli?

They are directly proportional Signup and view all the answers

What is the formula for minute CO2 output?

CO2 = A × PaCO2/PB Signup and view all the answers

What is the formula for minute alveolar ventilation?

A = E/VT Signup and view all the answers

What is the relationship between minute ventilation and CO2 output during moderate work intensities?

They are directly proportional Signup and view all the answers

What is the effect of metabolic acidosis on ventilation during heavy and very heavy work intensities?

Increases ventilation Signup and view all the answers

What is the formula for minute alveolar CO2 partial pressure?

PaCO2 = E × CO2/PB Signup and view all the answers

What is the effect of heavy exercise on the increase in cardiac output?

It is relatively small compared to the increase in metabolic rate Signup and view all the answers

What is the effect of increased extraction of O2 from the blood perfusing the muscles during exercise?

Increased oxygen uptake by the muscles Signup and view all the answers

What is the effect of metabolic acidosis on ventilation during moderate work intensities?

Has no effect on ventilation Signup and view all the answers

What is the effect of recruitment and vasodilation of pulmonary blood vessels during exercise?

Increases pulmonary blood flow Signup and view all the answers

What is the effect of minute ventilation on CO2 output during exercise?

Increases CO2 output Signup and view all the answers

Which of the following mechanisms contributes the most to the large increase in oxygen use by muscles during exercise?

Increased extraction of O2 from the blood perfusing the muscles Signup and view all the answers

What is the relationship between oxygen uptake (O2) and pulmonary blood flow?

O2 uptake is directly proportional to pulmonary blood flow Signup and view all the answers

What is the equation that relates CO2 output to alveolar ventilation, arterial or ideal alveolar CO2 partial pressure, and barometric pressure?

CO2 = A × PaCO2/PB Signup and view all the answers

What is the relationship between minute ventilation (E) and the newly produced CO2 arriving at the lungs?

E increases in relation to the newly produced CO2 Signup and view all the answers

What is the formula for minute ventilation (E)?

E = VT × f Signup and view all the answers

What is the relationship between alveolar ventilation (A) and arterial or ideal alveolar CO2 partial pressure?

A is inversely proportional to arterial or ideal alveolar CO2 partial pressure Signup and view all the answers

What is the term used to describe the increase in ventilation to provide respiratory compensation for metabolic acidosis?

Respiratory alkalosis Signup and view all the answers

What is the term used to describe the increase in pulmonary blood flow by recruitment and vasodilation of pulmonary blood vessels during exercise?

Pulmonary recruitment Signup and view all the answers

What is the term used to describe the amount of air that does not participate in gas exchange, but fills the airways?

Dead space ventilation Signup and view all the answers

What is the term used to describe the increase in ventilation to provide respiratory compensation for metabolic alkalosis?

Respiratory alkalosis Signup and view all the answers

What is the relationship between minute ventilation (E) and CO2 output?

E is directly proportional to CO2 output Signup and view all the answers

What is the term used to describe the increase in cardiac output during exercise?

Cardiac output reserve Signup and view all the answers

1014 Systems Coupling Summary

Questions and Answers

Which of the following is a mechanism that increases oxygen uptake by muscles during exercise?

What is the relationship between pulmonary blood flow and oxygen uptake from the alveoli?

What is the formula for minute CO2 output?

What is the formula for minute alveolar ventilation?

What is the relationship between minute ventilation and CO2 output during moderate work intensities?

What is the effect of metabolic acidosis on ventilation during heavy and very heavy work intensities?

What is the formula for minute alveolar CO2 partial pressure?

What is the effect of heavy exercise on the increase in cardiac output?

What is the effect of increased extraction of O2 from the blood perfusing the muscles during exercise?

What is the effect of metabolic acidosis on ventilation during moderate work intensities?

What is the effect of recruitment and vasodilation of pulmonary blood vessels during exercise?

What is the effect of minute ventilation on CO2 output during exercise?

Which of the following is a mechanism that increases oxygen uptake by muscles during exercise?

What is the relationship between pulmonary blood flow and oxygen uptake from the alveoli?

What is the formula for minute CO2 output?

What is the formula for minute alveolar ventilation?

What is the relationship between minute ventilation and CO2 output during moderate work intensities?

What is the effect of metabolic acidosis on ventilation during heavy and very heavy work intensities?

What is the formula for minute alveolar CO2 partial pressure?

What is the effect of heavy exercise on the increase in cardiac output?

What is the effect of increased extraction of O2 from the blood perfusing the muscles during exercise?

What is the effect of metabolic acidosis on ventilation during moderate work intensities?

What is the effect of recruitment and vasodilation of pulmonary blood vessels during exercise?

What is the effect of minute ventilation on CO2 output during exercise?

Which of the following mechanisms contributes the most to the large increase in oxygen use by muscles during exercise?

What is the relationship between oxygen uptake (O2) and pulmonary blood flow?

What is the equation that relates CO2 output to alveolar ventilation, arterial or ideal alveolar CO2 partial pressure, and barometric pressure?

What is the relationship between minute ventilation (E) and the newly produced CO2 arriving at the lungs?

What is the formula for minute ventilation (E)?

What is the relationship between alveolar ventilation (A) and arterial or ideal alveolar CO2 partial pressure?

What is the term used to describe the increase in ventilation to provide respiratory compensation for metabolic acidosis?

What is the term used to describe the increase in pulmonary blood flow by recruitment and vasodilation of pulmonary blood vessels during exercise?

What is the term used to describe the amount of air that does not participate in gas exchange, but fills the airways?

What is the term used to describe the increase in ventilation to provide respiratory compensation for metabolic alkalosis?

What is the relationship between minute ventilation (E) and CO2 output?

What is the term used to describe the increase in cardiac output during exercise?

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