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Four fused vertebrae at the base of the spine forming the tailbone.
Coccyx
Low back region of the spine composed of five vertebrae.
Lumbar region
Moveable jawbone
Mandible
he first seven vertebrae, comprising the neck
Cervical region
The part of the skeleton composed of all of the bones of the head.
Skull
Bones of the face.
Facial bones
Five fused vertebrae that form the posterior of the pelvic girdle.
Sacrum
The 12 vertebrae in the middle of the back
Thoracic region
Joints in which irregularly grooved, articulating bone sheets join closely and are tightly connected by fibrous tissues
Sutures
The second cervical vertebra; specialized with an upward projection called the odontoid process, on which the atlas rotates.
Axis
Central, stable portion of the skeletal system, consisting of the skull, spinal column, and thoracic cage
Axial skeleton
Bony structure surrounding the heart and lungs in the thoracic cavity; composed of the ribs, sternum, and thoracic vertebrae
Thoracic cage
Openings in the infant skull through which a baby’s pulse can be felt; these openings enable compression of the skull during birth and brain growth during late pregnancy and early infancy.
Fontanel
Fibrocartilaginous cushions between vertebral bodies that allow bending of the spine and help to create the normal spinal curves.
Intervertebral discs
The first cervical vertebra; specialized to provide the connection between the occipital bone of the skull and the spinal column
Atlas
Two fused bones that form the upper jaw, house the upper teeth, and connect to all other bones of the face, with the exception of the mandible
Maxillary bones