After hyperventilating for several minutes, a person may develop short periods of apnea because
A. oxygen in the lungs has not had time to diffuse into the blood.
B. blood pH would drop and inhibit inspiration.
C. blood pH will rise and stimulate expiration.
D. the level of oxygen has increased and inhibits the inspiratory center.
E. the level of CO2 decreases below the level necessary to stimulate the inspiratory center.
Answer: E
You might also like to view...
Which center is located in the pons?
A) inspiratory center B) pacemaker neuron center C) pontine respirator group (PRG) D) expiratory center
Define quarantine
What will be an ideal response?
The repolarization of the action potential involves the opening of
A. chemically gated Na+ channels. B. voltage-gated Na+ channels. C. chemically gated K+ channels. D. voltage-gated K+ channels.
Blood supply to the pancreas is essential because the organ is the production site for important hormones used in glucose metabolism. Which of the following arteries does NOT supply the pancreas?
a. superior mesenteric artery b. left gastric artery c. splenic artery d. common hepatic artery