Podcast
Questions and Answers
What is the primary function of the lungs in terms of gas exchange?
What is the primary function of the lungs in terms of gas exchange?
- Producing voice
- Regulating the body's fluid balance
- Maintaining the body's heat
- Exchanging O2 and CO2 between the blood and air (correct)
What percentage of the air we breathe in is composed of oxygen?
What percentage of the air we breathe in is composed of oxygen?
- 16%
- 80%
- 40%
- 20% (correct)
How much air do we breathe in per minute?
How much air do we breathe in per minute?
- 6 liters (correct)
- 12 liters
- 1 liter
- 10 liters
What is the approximate volume of oxygen absorbed by the lungs daily?
What is the approximate volume of oxygen absorbed by the lungs daily?
What is the trachea also known as?
What is the trachea also known as?
At rest, how many times do women breathe per minute?
At rest, how many times do women breathe per minute?
What is the primary way O2 is carried to cells in the body?
What is the primary way O2 is carried to cells in the body?
What factors affect the dissociation of O2 from Hb?
What factors affect the dissociation of O2 from Hb?
Why can working muscles obtain more O2 during heavy exercise?
Why can working muscles obtain more O2 during heavy exercise?
How do CO molecules interact with Hb?
How do CO molecules interact with Hb?
What is the approximate normal tidal volume for a healthy, 70-kg adult?
What is the approximate normal tidal volume for a healthy, 70-kg adult?
What instrument is used to measure lung volume?
What instrument is used to measure lung volume?
What is the total lung capacity determined by?
What is the total lung capacity determined by?
What is the vital capacity of a normal healthy 70-kg adult?
What is the vital capacity of a normal healthy 70-kg adult?
What causes the negative pressure in the alveoli during normal breathing?
What causes the negative pressure in the alveoli during normal breathing?
What is the transmural pressure gradient defined by?
What is the transmural pressure gradient defined by?
What is the intrapleural pressure caused by?
What is the intrapleural pressure caused by?
What is the equation for total lung capacity?
What is the equation for total lung capacity?
What is the primary source of energy for the human body?
What is the primary source of energy for the human body?
What is the approximate amount of CO2 disposed of via the lungs each day?
What is the approximate amount of CO2 disposed of via the lungs each day?
What is the function of the cardiovascular system in the body?
What is the function of the cardiovascular system in the body?
What is the by-product of the body's energy production that is disposed of through the urine?
What is the by-product of the body's energy production that is disposed of through the urine?
What is the function of the lungs in the body?
What is the function of the lungs in the body?
What is the result of the interaction between the cardiovascular and pulmonary systems?
What is the result of the interaction between the cardiovascular and pulmonary systems?
What is the work of inspiration represented by in Fig. 3?
What is the work of inspiration represented by in Fig. 3?
What helps provide the stored energy during expiration?
What helps provide the stored energy during expiration?
What is the unit of airway resistance?
What is the unit of airway resistance?
What percentage of airway resistance is related to the viscosity of the gas we breathe?
What percentage of airway resistance is related to the viscosity of the gas we breathe?
What is analogous to the flow of air in the lungs?
What is analogous to the flow of air in the lungs?
Where is the largest percentage of airway resistance located?
Where is the largest percentage of airway resistance located?
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