請問不同階層的「標題」英文是什麼？

一篇文章的「篇名」的英文？

The title of the article, or simply "article title"

一篇文章內的「大標」？

headers

一篇文章內某一大標題下的「小標題」？

sub-headers, 2nd level headers, 3rd level.

For examples:

1. Introduction (this is a header)

1.1.2 Structure of the Book (this is a subheader or 3rd level header)

2014-01-30 23:34:47 補充：

I stayed up late just to wait for this question.

2014-01-31 08:24:57 補充：

What? When did you hear that rumor? I categorically deny it.

想請教一下各位大師，英文維基百科的標題使用的是heading 請問這跟header哪個在英語系國家中比較普遍使用？

Happy New Year, Jim, AP!

I think the above is a header!

2014-01-31 03:06:12 補充：

Master AP, I think you are waiting for this headline:

Master AP has finally put in the bid to run US president

From a reliable source, she will announce it right after Chinese New Year!

2014-01-31 09:19:16 補充：

I must have misunderstood your saying earlier!

Happy New Year Prisoner, you sure are a headliner in this post.