The National Assembly is the name of both chambers of the Bahraini parliament. This is in the Constitution of 2002.
It has 80 seats. There are 40 elected members of the Council of Representatives (the lower house). There are 40 royally-appointed members of the Consultative Council (the upper house).
It is chaired by the Speaker of the Consultative Council. If that person is gone the chair is the Speaker of the Council of Representatives.