Dense tissue in which cells are organized in osteons (Haversian Systems) with no spaces.
Connective tissue in spaces within bones that includes blood-forming stem and progenitor cells.
Bone that begins as hyaline cartilage that is subsequently replaced by bone tissue.
A simple mechanic device consisting of a rod, a fulcrum, a weight, and a source of energy that is applied to some point on the rod.
Located in the neck between the lower jaw and the larynx. It supports the tongue and is an attachment for certain muscles that help to move the tongue during swallowing.
Consists of many vertebrae separated by cartilaginous intervertebral discs. Near its distal end, several vertebrae fuse to form the sacrum which is part of the pelvis.
A triangular structure, composed of 5 fused vertebrae, that forms the base of the vertebral column.
A small, rudimentary tailbone composed of 4 fused vertebrae, and is attached to the end of the sacrum.
Protects the organs of the thoracic cavity and upper abdominal cavity. Composed of 12 pairs of ribs, which articulate posteriorly with the thoracic vertebrae. Also includes the sternum.
Consists of the bones of the upper and lower limbs and the bones that anchor the limbs to the axial skeleton.
Formed by a scapula and a clavicle on each side of the body. Connects the bones of the upper limbs to the axial skeleton and aids in upper limb movements.
Two coxae, or hipbones, form this bone and are attached to each other anteriorly and to the sacrum posteriorly. They connect the bones of the lower limbs to the axial skeleton and, with the sacrum and the coccyx, form the pelvis.
Located on each side of the skull just behind the frontal bone. Form the bulging sides and roof of the cranium.
Forms the back of the skull and the base of the cranium. Joins the parietal bones along the lambdoidal suture.
Bone on each side of the skull that joins the parietal bone along a squamosal suture.
Wedged between several other bones in the anterior portion of the cranium. Consists of a central part and two winglike structures that extend laterally toward each side of the skull.
Located in front of the sphenoid bone. Consists of two masses, one on each side of the nasal cavity, which are joined horizontally by thin cribriform plates. These plates form the roof of the nasal cavity.
Consists of 13 immovable bones and a movable lower jawbone. These bones form the basic form for the shape of the face and provide attachments for muscles that move the jaw and control facial expressions.
Forms the upper jaw. Portions of these bones comprise the anterior roof of the mouth (hard palate), the floors of the orbits, and the sides and floor of the nasal cavity. They also contain the sockets of the upper teeth.
The L-shaped bones located behind the maxillae. The horizontal portions form the posterior section of the hard palate and the floor of the nasal cavity. The perpendicular portions help form the lateral walls of the nasal cavity.
Form the prominences of the cheeks below the to the sides of the eyes. (Cheekbones)
A thin, scalelike structure located in the medial wall of each orbit between the ethmoid bone and the maxilla.
Long, thin, nearly rectangular bones that lie side by side and are fused at the midline, where they form the bridge of the nose.
A thin flat bone which is located along the midline within the nasal cavity. Posteriorly, it joins the perpendicular plate of the ethmoid bone, and together they form the nasal septum.
Inferior nasal conchae
Fragile, scroll shaped bones attached to the lateral walls of the nasal cavity.
The many bony parts of the spine, which are separated by intervertebral discs and are connected to one another by ligaments.
The second cervical vertebra that bears a toothlike dens on its body. The dens projects upward and lies in the ring of the atlas. As the head turns from side to side, this vertebra pivots around the dens.
The type of joint that lie between bones that closely contact one another. Ex: sutures between the bones of the skull.
Hyaline cartilage connects the bones of the this type of joint. Ex: joints that separate the vertebrae.
Consists of a bone with a ball-shaped head that articulates with the cup-shaped cavity of another bone. Ex: Hip joint, shoulder joint
A joint in which an oval-shaped condyle of one bone that fits into the elliptical cavity of another bone. Ex: joints of metacarpals and phalanges
Articulation points of these joints are nearly flat or slightly curved and allow sliding and twisting movements. Ex: joints in the wrist, ankle, and those between the articular processes of adjacent vertebrae
A joint that forms between articulating surfaces that have both concave and convex regions and allows for a variety of movements. Ex: joint of the thumb
Bending parts of a joint so that the angle between them decreases and the parts come closer together.
Straightening parts at a joint so that the angle between them increases and the parts move farther apart.