Podcast
Questions and Answers
What is the main cause for an increase in breathing rate?
What is the main cause for an increase in breathing rate?
- High O2 concentration in the blood
- Elevated CO2 concentration in the blood (correct)
- Increased blood pressure
- Low pH levels in the blood
What stimulates an increase in breathing rate during strenuous exercise?
What stimulates an increase in breathing rate during strenuous exercise?
- Decreased CO2 levels
- High levels of O2 in the muscles
- Low H+ levels in the blood
- Excess lactate production (correct)
In which scenario is a large drop in O2 needed to stimulate chemoreceptors and increase breathing?
In which scenario is a large drop in O2 needed to stimulate chemoreceptors and increase breathing?
- During rest
- When asleep
- At high altitudes (correct)
- During exercise
What defines the saturation rate concerning hemoglobin?
What defines the saturation rate concerning hemoglobin?
What is a characteristic of fetal blood's hemoglobin?
What is a characteristic of fetal blood's hemoglobin?
What is one effect of lower pH on hemoglobin regarding oxygen dissociation?
What is one effect of lower pH on hemoglobin regarding oxygen dissociation?
What is the main function of the cilia in the nose?
What is the main function of the cilia in the nose?
Where does the laryngopharynx split into?
Where does the laryngopharynx split into?
What is the function of the epiglottis?
What is the function of the epiglottis?
Which structure marks the beginning of the respiratory zone?
Which structure marks the beginning of the respiratory zone?
What is the primary function of alveolar macrophages?
What is the primary function of alveolar macrophages?
Which factor is responsible for causing lung contraction during breathing?
Which factor is responsible for causing lung contraction during breathing?
What does thoracic wall compliance refer to in relation to breathing?
What does thoracic wall compliance refer to in relation to breathing?
What is tidal volume in relation to pulmonary ventilation?
What is tidal volume in relation to pulmonary ventilation?
What defines inspiratory reserve volume in the respiratory system?
What defines inspiratory reserve volume in the respiratory system?
What describes the functional residual capacity in terms of lung function?
What describes the functional residual capacity in terms of lung function?
