And these shapes help them serve their specific purpose. So they have compact bone and spongy bone and fungus protection and support. Some examples include our sacram, the mandible, the maxilla and our vertebrae. Now, the final type of bone we're going to examine is a sesamoid bone. So all humans typically contain one sesame bone, and that's basically our patella. Now, the patella, or by definition, our sesamoid bone, is a bone that is in the shape of a sesame seed.