Which of the following is the most abundant gas in our air?
a. Oxygen
b. Hydrogen
c. Nitrogen
d. Argon
Answer: C
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Human Anatomy
- The _______ is responsible for setting the basic rhythm of breathing.
- Hemoglobin molecules are fully saturated when bound to _______ molecule(s) of O2
- Why is the rate of CO2 exchange roughly equivalent to that of O2 despite its less steep pressure gradient?
- When holding our breath for a long time we get the urge to breathe due to:
- Which of the following has the greatest effect on respiration rate?
- The inflation reflex depends upon stimulation of which type of receptor?
- A decrease in pH will have what effect on the respiration rate?
- Normal quiet respiration is controlled by the:
- Which of the following will increase hemoglobin's affinity for oxygen?
- In the tissues, hemoglobin will release some oxygen and bind to:
- Hemoglobin has the highest affinity for which of the following?
- The majority of carbon dioxide is transported:
- Low PO2 and high PCO2 in the alveoli will cause:
- The rate of oxygen diffusion across the respiratory membrane depends upon all of the following except:
- The pressure exerted by each type of gas in a gas mixture is the __________ of that gas.
- Which of the following is responsible for keeping the lungs from collapsing?
- All of the following statements are true of inspiration except:
- This volume of air remains in the lungs after maximal expiration.
- Surfactant decreases the __________ in the alveoli.
- An increase in the volume of a container filled with air would have what effect on the pressure of the container?
- All of the following are part of the conduction zone except:
- The Bohr effect describes _________.
- Hemoglobin molecules are fully saturated when bound to ____ molecule(s) of O2.
- Why is the rate of CO2 exchange roughly equivalent to that of O2 despite its less steep pressure gradient?
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.