You are given a sentence in Portuguese. Your job is to translate the Portuguese sentence into Hebrew.
Example: Afinal de contas elas é que decidem, e decidiram mesmo.
Example solution: אחרי הכל, הם החליטו, והם עשו,
Example explanation: The Portugese sentence is correctly translated into Hebrew, because the meaning is preserved.

Problem: É a matriz extracelular, mas no couro, é o componente essencial.

Solution: זוהי מטריצה חוץ-תאית, אבל בעור, זוהי אבן היסוד המרכזית.