Creating a Table of Contents in Pages - need help with Style formatting for headers

I am trying to create a legal document that contains many sections. I cannot create a Table of Contents using the styles because it formats the entire paragraph as a header. On the first couple of words are the headers.

For instance:

1. Heading for this Paragraph. This section is the body of the paragraph and I don't want it included in the TOC.

I would like to be able to just have the heading (in italics) appear in the TOC. But Styles formats the entire paragraph.

Is there a workaround? Thank you.