Do humans have a quadrate bone?
The quadrate bone is a skull bone in most tetrapods, including amphibians, sauropsids (reptiles, birds), and early synapsids. … The quadrate bone forms the lower jaw articulation in all classes except mammals. Is the quadrate an Endochondral bone? The splanchnocranium consists of cartilage and endochondral bone. … In other tetrapods, such as amphibians and reptiles,…