SQL Update - Update Table from 2 others

Hey Guys
I am looking to update my Parcel Table from the Segment & Street Table using and update trigger.
If Street_Full_Name is updated in Street table
Then update the Parcel Table, Small Catch (Subquery?)

Within the Parcel Table it only holds Segment_ID. Segment_ID is updated manually depending on Parcel locations.
Street_Full_Name is updated in Segment using the following Query

UPDATE Segment
SET Segment.street_Full_Name = st.street_Full_Name,
	from dbo.Street st
                INNER JOIN INSERTED i ON st.OID = i.OID
                INNER JOIN dbo.Segment s ON s.Street_ID = st.Street_ID

Select allOpen in new window

Segment connects to Street using the Street_ID
Parcel does not have the Street_ID, It has Segment_ID.
So how do i connect Parcel to Street(which is the base source for the Street_Name_Full column) Using the Segment_ID held in Segment.
3 table join type thing
Thanks