ואם זבח שלמים קרבנו, the owner had said: “I am obligating myself to offer a peace offering, שלמים; seeing that the donor had not added the word עולה to describe the offering he meant to sacrifice, it is not assumed that he had intended for the entire sacrificial animal to be burnt up on the altar, as is the case with an עולה. The expression שלמים which is related to שלם, to pay, is an expression used by David who said that he wanted to pay his vows (Psalms 117,18) It is assumed that the “vows” were undertakings to offer sacrificial animals. Our sages in Torat Kohanim speaking of נדבה understand the word שלום as an offering in which everyone shares, i.e. the fat parts are burnt on the altar, belong to G’d, the chest, and thigh belong to the priests, the balance may be eaten by the owner, the donour.

היותרת, a growth on top of the liver.

לעומת העצה, the kidneys; our sages in Chulin 11 describe how this tissue is to be removed.

בכל מושבותיכם כל חלב וכל דם לא תאכלו, even in those locations where you eat secular meat, i.e. meat from animals which were not offered on the altar as sacrificial meat. Although none of the fat or blood of those animals was destined for the altar, it is still forbidden.