The bones are initially separated (the fontanelles Fontanelles Physical Examination of the Newborn at birth) and fuse over childhood. Bones: Structure and Types, bilateral parietal bones, and bilateral temporal bones. The 2 primary types of bone are compact and spongy. Bones: Structure and Types, unpaired occipital bone Bone Bone is a compact type of hardened connective tissue composed of bone cells, membranes, an extracellular mineralized matrix, and central bone marrow. The calvarium is the upper portion of the neurocranium, and consists of the unpaired frontal bone Bone Bone is a compact type of hardened connective tissue composed of bone cells, membranes, an extracellular mineralized matrix, and central bone marrow. Nervous System: Anatomy, Structure, and Classification. The developed brain consists of cerebrum cerebellum and other structures in the brain stem. Arising from the neural tube, the embryonic brain is comprised of three major parts including prosencephalon (the forebrain) mesencephalon (the midbrain) and rhombencephalon (the hindbrain). The neurocranium is the complex of bones encasing the brain Brain The part of central nervous system that is contained within the skull (cranium). On each side, inferior to the second premolar tooth, is the mental foramen for the passage of blood vessels and a nerve. This line of fusion divides inferiorly to enclose a triangular area called the mental protuberance. Jaw and Temporomandibular Joint: Anatomy and chin Chin The anatomical frontal portion of the mandible, also known as the mentum, that contains the line of fusion of the two separate halves of the mandible (symphysis menti). The 4 muscles of mastication produce the movements of the TMJ to ensure the efficient chewing of food. The mandible articulates with the temporal bone via the temporomandibular joint (TMJ). Lower jaw Jaw The jaw is made up of the mandible, which comprises the lower jaw, and the maxilla, which comprises the upper jaw. Mandible Mandible The largest and strongest bone of the face constituting the lower jaw. It is formed by the septal nasal cartilage, parts of skull bones, and membranous parts. Posterior portion of the nasal septum Nasal septum The partition separating the two nasal cavities in the midplane. Palate: Anatomy (the palatine process of the maxilla) This structure is divided into soft and hard palates. Jaw and Temporomandibular Joint: Anatomy and ¾ of the hard palate Palate The palate is the structure that forms the roof of the mouth and floor of the nasal cavity. Upper jaw Jaw The jaw is made up of the mandible, which comprises the lower jaw, and the maxilla, which comprises the upper jaw. Posterior quarter of the hard palate Palate The palate is the structure that forms the roof of the mouth and floor of the nasal cavity. The anatomy of the nose can be divided into the external nose and the nasal cavity. The nose may be best known for inhaling oxygen and exhaling carbon dioxide, but it also contributes to other important functions, such as tasting. Bones: Structure and Typesīridge of the nose Nose The nose is the human body’s primary organ of smell and functions as part of the upper respiratory system. Table: Bones of the viscerocranium Viscerocranium bone Bone Bone is a compact type of hardened connective tissue composed of bone cells, membranes, an extracellular mineralized matrix, and central bone marrow.
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