Variations[ edit ] Elements of the cartilaginous viscerocranium i. The ethmoid bone or a part of it and also the sphenoid bone are sometimes included, but otherwise considered part of the neurocranium. Because the maxillary bones are fused, they are often collectively listed as only one bone. The mandible is generally considered separately from the cranium. Development[ edit ] The facial skeleton is composed of dermal bone and derived from the neural crest cells also responsible for the development of the neurocranium , teeth and adrenal medulla or from the sclerotome , which derives from the somite block of the mesoderm. As with the neurocranium, in Chondricthyes and other cartilaginous vertebrates, they are not replaced via endochondral ossification.
How many facial bones are there in the face?
What are the Facial Bones? (with pictures)
At birth 44 bony elements. But they combine to form skull of a adult which consist of 22 bones. How many bones do you have in the cranium? The entire group of bones that make up the head is called the skull and it too can be divided into two primary groups: There are eight bones that make up the cranium, and six bones make up the facial area.
What are the Facial Bones?
The facial bones underlie the facial structures, form the nasal cavity, enclose the eyeballs, and support the teeth of the upper and lower jaws. The rounded brain case surrounds and protects the brain and houses the middle and inner ear structures. In the adult, the skull consists of 22 individual bones, 21 of which are immobile and united into a single unit.
Question Answer Which of the following bones is not a facial bone? Maxillae List the four processes of the maxilla Frontal, alveolar, zygomatic, palatine Which facial bone forms the majority of the hard palate? The hard palate is a thin horizontal bony plate of the skull, located in the roof of the mouth. It is formed by the palatine process of the maxilla and horizontal plate of palatine bone, and spans the arch formed by the upper teeth. What part of the mandible articulates with the cranium?