The background sodium current. This model was derived from the model by `Luo and Rudy (1991) <https://models.physiomeproject.org/exposure/2d2ce7737b42a4f72d6bf8b67f6eb5a2>`_.

`Corresponding bond graph model. <https://models.physiomeproject.org/workspace/82b>`_

`Corresponding protein knowledge page. <https://models.physiomeproject.org/e/bd5>`_

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