The pacemaker (funny) current channel is based on the formulation by `Kernik et al <https://models.physiomeproject.org/e/be3>`_. This channel allows for both potassium and sodium ion entry into the cell, and is voltage-dependent.

`Corresponding bond graph model. <https://models.physiomeproject.org/workspace/838>`_

`Corresponding protein knowledge page. <https://models.physiomeproject.org/e/bb7>`_

Bond graph diagram
===================
.. figure:: exposure/BG_f.png
   :width: 75%
   :align: center
   :alt: BG_funny