Question 1
An increase in the level of carbon dioxide in the blood will
◦ decrease the rate of breathing.
◦ increase the pH of arterial blood.
◦ decrease the alveolar ventilation rate.
◦ decrease pulmonary ventilation.
◦ increase the rate of breathing.
Question 2
The expiratory neurons control the ________ muscles, whereas the inspiratory neurons control the ________ muscles.
◦ abdominal muscles and external intercostals, diaphragm and internal intercostals
◦ diaphragm and external intercostals, abdominal muscles and internal intercostals
◦ diaphragm and internal intercostals, abdominal muscles and external intercostals
◦ abdominal muscles and internal intercostals, diaphragm and external intercostals
◦ diaphragm and abdominal muscles, internal and external intercostals