Question

Which of the following statements about the control of respiration by the nervous system is false?

a) Experiments have shown that the central pattern generator for respiration is located in the pons.
b) The VRG contains both inspiratory and expiratory neurons.
c) The DRG only contains inspiratory neurons.
d) Inspiratory muscles receive excitatory input from the phrenic and external intercostal nerves.
e) Answers a and b are false.
f) Answers a and c are false.

Answer 1

The false statement about the control of respiration by the nervous system is that the DRG only contains inspiratory neurons.

Step-by-step explanation:

The false statement about the control of respiration by the nervous system is Answer c) The DRG only contains inspiratory neurons.

The dorsal respiratory group (DRG) in the medulla oblongata contains both inspiratory and expiratory neurons. These neurons are responsible for maintaining a constant breathing rhythm and controlling the contraction and relaxation of the diaphragm and intercostal muscles. The VRG (ventral respiratory group) is involved in forced breathing and stimulates the accessory muscles for both inspiration and expiration.

Therefore, the correct answer is c) The DRG only contains inspiratory neurons.