👉 A tetrapetalous bone is a type of cartilage bone, which are found in the bones of the human body. They are characterized by having three layers of cartilage (or bone) between them. These structures are called "tetrapetalus" because they have three layers of cartilage. The term "tetrapetalous" refers to the fact that these bones are made up of three different types of cartilage, which is why they are called tetrapetalous.
