Podcast
Questions and Answers
What is the main factor affecting breathing rate?
What is the main factor affecting breathing rate?
- Increased H+ concentration leading to decreased pH (correct)
- Low CO2 concentration in the blood
- High O2 concentration in the blood
- Elevated blood pressure
During strenuous exercise, why does breathing rate increase?
During strenuous exercise, why does breathing rate increase?
- To decrease O2 levels in the body
- To increase H+ levels in the blood
- To expand lung capacity
- To decrease CO2 levels in the body (correct)
What stimulates chemoreceptors to increase breathing rate?
What stimulates chemoreceptors to increase breathing rate?
- A large drop in CO2 levels
- A large drop in O2 levels (correct)
- A high blood pressure reading
- An increase in body temperature
What is the main component of gas exchange in the lungs and tissues?
What is the main component of gas exchange in the lungs and tissues?
What is the function of fetal breathing movements during development?
What is the function of fetal breathing movements during development?
What characteristic of fetal blood makes it suitable for gas exchange at low pressures?
What characteristic of fetal blood makes it suitable for gas exchange at low pressures?
What is the main function of the cilia in the nose?
What is the main function of the cilia in the nose?
Which part of the respiratory system serves as a major entrance and exit?
Which part of the respiratory system serves as a major entrance and exit?
What is the purpose of the epiglottis in the larynx?
What is the purpose of the epiglottis in the larynx?
Where does gas exchange primarily occur in the respiratory system?
Where does gas exchange primarily occur in the respiratory system?
Which term refers to the difficulty expanding the thoracic wall?
Which term refers to the difficulty expanding the thoracic wall?
What does pulmonary ventilation refer to?
What does pulmonary ventilation refer to?
What is the role of the carina in the respiratory system?
What is the role of the carina in the respiratory system?
What is Boyles law related to in terms of respiratory physiology?
What is Boyles law related to in terms of respiratory physiology?
Which structure in the lungs is highly permeable to gases?
Which structure in the lungs is highly permeable to gases?
What does total lung capacity represent?
What does total lung capacity represent?
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