Question 1
In the medulla oblongata, the nucleus tractus solitarius contains the ________ of neurons.
◦ ventral respiratory group
◦ pre-Botzinger complex
◦ dorsal respiratory group
◦ pontine respiratory group
Question 2
The most important chemical regulator of respiration is
◦ hemoglobin.
◦ bicarbonate ion.
◦ oxygen.
◦ carbon dioxide.
◦ sodium ion.