The initiation of diving apnoea in the frog, Rana pipiens.

  title={The initiation of diving apnoea in the frog, Rana pipiens.},
  author={Nigel H. West and David R. Jones},
  journal={The Journal of experimental biology},
  volume={64 1},
1. Diving apnoea in Rana pipiens was initiated by submerging the external nares. As the water level was raised above the frog, both buccal and lung pressure increased by an amount corresponding to the water head. During submergence the external nares remained closed, although the apnoeic period was punctuated by ventilation movements which moved gas between the lungs and buccal cavity. 2. Bilateral section of the ophthalmic nerves did not alter the normal pattern of ventilation in air, although… CONTINUE READING