The United Kingdom has now four bodies with members elected by constituencies: The House of Commons of the Parliament of the United Kingdom The Scottish Parliament The Welsh Assembly The Northern Ireland Assembly The House of Commons has over 600 constituencies representing the whole of the United Kingdom. ... In some bicameral parliaments of a Westminster System, the House of Commons has historically been the name of the elected lower house. ... The Parliament of the United Kingdom of Great Britain and Northern Ireland is the supreme legislative institution in the United Kingdom and British overseas territories (it alone has parliamentary sovereignty). ... The United Kingdom has now four bodies with members elected by constituencies: The House of Commons of the Parliament of the United Kingdom The Scottish Parliament The Welsh Assembly The Northern Ireland Assembly The House of Commons has over 600 constituencies representing the whole of the United Kingdom. ... The Scottish Parliament (Pàrlamaid na h-Alba in Gaelic, Scots Pairlament in Scots) is the national legislature of Scotland. ...