👉 The term "sphenoids" refers to two pairs of bones that are located on the front of the skull and help to form a triangular shape. These bones are known as the Sphenoid骨突, and they are characterized by their flat surfaces and distinct shapes. The sphenoids are also called the mandibular sphenoids or the maxillary sphenoids. They play an important role in the development of facial features such as the jaw line and the shape of the face.