Where does bone formation occur during endochondral ossification?Multiple choice question.Hyaline cartilage modelFibrous membranous sheetAdipose tissue

Analysis of Options

1. Hyaline cartilage model: Endochondral ossification primarily occurs in a pre-existing hyaline cartilage model, where cartilage is gradually replaced by bone. This is the correct answer as it relates to the transformation that takes place during this process.

2. Fibrous membranous sheet: While intramembranous ossification occurs in fibrous membranes, this is not the site for endochondral ossification which specifically relies on a cartilage model.

3. Adipose tissue: Adipose tissue is involved in energy storage and not in the direct process of bone formation during endochondral ossification.

Final Answer

Bone formation during endochondral ossification occurs in the hyaline cartilage model.