Pretrigeminal preparation.

  title={Pretrigeminal preparation.},
  author={Bogusław Zernicki},
  journal={Archives italiennes de biologie},
  volume={124 3},
The pretrigeminal preparation (pretrigeminal animal) is obtained by transection the pons in front of roots of the trigeminal nerves. The rostral part of the preparation (isolated cerebrum) has olfactory, visual and humoral inputs and controls vertical position of eye and their pupillary diameter and accommodation. The pretrigeminal preparation was described in the cat and rat. During the acute stage the isolated cerebrum is continuously awake, alternatively alert and drowsy. In the chronic… CONTINUE READING