what are the two parts of the skull
the cranium and the mandible
title: Skull text: Skull The skull is a bony structure that forms the head in vertebrates. It supports the structures of the face and provides a protective cavity for the brain. The skull is composed of two parts: the cranium and the mandible. In the human, these two parts are the neurocranium and the viscerocranium or facial skeleton that includes the mandible as its largest bone. The skull forms the anterior most portion of the skeleton and is a product of cephalisation—housing the brain, and several sensory structures such as the eyes, ears, nose, and mouth. In humans these sensory structures are part title: Skull text: they are related as follows: The jugal is a skull bone found in most reptiles, amphibians, and birds. In mammals, the jugal is often called the zygomatic bone or malar bone. The prefrontal bone is a bone separating the lacrimal and frontal bones in many tetrapod skulls. Skull The skull is a bony structure that forms the head in vertebrates. It supports the structures of the face and provides a protective cavity for the brain. The skull is composed of two parts: the cranium and the mandible. In the human, these two parts are the neurocranium and the viscerocranium or title: Skull text: bones, and contains many foramina, fossae, processes, and several cavities or sinuses. In zoology there are openings in the skull called fenestrae. The human skull is the bony structure that forms the head in the human skeleton. It supports the structures of the face and forms a cavity for the brain. Like the skulls of other vertebrates, it protects the brain from injury. The skull consists of two parts, of different embryological origin—the neurocranium and the facial skeleton (also called the "membraneous viscerocranium"). The neurocranium (or "braincase") forms the protective cranial cavity that surrounds and houses the brain and brainstem. title: Skull fracture text: to the neurocranium, while fractures of the facial portion of the skull are "facial fractures", or if the jaw is fractured, a "mandibular fracture". The eight cranial bones are separated by sutures : one frontal bone, two parietal bones, two temporal bones, one occipital bone, one sphenoid bone, and one ethmoid bone. The bones of the skull are in three layers: the hard compact layer of the external table ("lamina externa"), the diploë (a spongy layer of red bone marrow in the middle, and the compact layer of the inner table ("Lamina interna"). Skull thickness is variable, depending on location. title: Skull text: the stated twenty-two. Some of these bones—the occipital, parietal, frontal, in the neurocranium, and the nasal, lacrimal, and vomer, in the facial skeleton are flat bones. The skull also contains sinuses, air-filled cavities known as paranasal sinuses, and numerous foramina. The sinuses are lined with respiratory epithelium. Their known functions are the lessening of the weight of the skull, the aiding of resonance to the voice and the warming and moistening of the air drawn into the nasal cavity. The foramina are openings in the skull. The largest of these is the foramen magnum that allows the passage of the