to protect you brain
parietal bone
Cartilage is considered to be a hard structure in the head that is neither cranial nor a facial bone. The nose and ears are made of cartilage.
The hyoid bone is neither a cranial nor a facial bone. It is a U-shaped bone located in the neck that serves as a point of attachment for muscles involved in swallowing and speech.
The Sphenoid (Sphenoidal Bone) this is why it is know as the keystone of the cranial floor *The sphenoid is not a facial bone, it is a cranial bone. There is no facial bone which 'articulates' with 'every other facial bone'. Articulation suggests jointed so sutures would make more sense & these sutures would be on all facial bones edges which knit them together
Where one cranial bone meets another is referred to as a suture line.
Sinuses, or air cavities.
Facial and cranial bone
Sphenoid Bone:(from Greek sphenoeides, meaning "wedgelike") wedge like bone, one of the eight Cranial Bones. There are fourteen Facial Bones...
There are multiple unpaired bones of the skull. The unpaired cranial bones are the frontal, occipital, sphenoid, and ethmoid bones. The unpaired facial bones are the vomer, mandible, and the hyoid.
The skull is composed of two main bone divisions: the cranium (which protects the brain) and the mandible (lower jawbone). The facial bones contribute to the structure of the face and include bones like the maxilla, zygomatic, and nasal bones.
Sphenoid bone. It joins all cranial bones together Source: medical student
Facial nerve, the seventh cranial nerve. It leaves the brain along with eighths cranial nerve through internal acoustic meatus and comes out through stylomastoid foramen to supply the muscles of facial expression.