Skeletal Anatomy

Parietal

Forms the top and sides of the skull.

Frontal

Forehead bone; forms the front part of the skull.

Temporal

Side of the skull; houses structures of the ears.

Occipital

Back of the skull; contains the foramen magnum.

Nasal

Small bones that form the bridge of the nose.

Maxilla

Upper jaw bone; contains upper teeth.

Mandible

Lower jaw bone; only movable skull bone.

Sphenoid

Butterfly-shaped bone that forms part of the base of the skull.

Zygomatic

Cheekbone; connects to the maxilla and temporal bone.

Lacrimal

Small bone in the inner eye socket; helps form the tear duct.

Ethmoid

Light, spongy bone that forms part of the nasal cavity and orbits.

Palatine

Forms part of the hard palate (roof of the mouth).

Vomer

Forms part of the nasal septum.

Coronal Suture

Separates the frontal and parietal bones.

Squamous Suture

Separates the temporal and parietal bones.

Occipitomastoid Suture

Connects the occipital and temporal bones.

Lambdoid Suture

Separates the occipital and parietal bones.

Sagittal Suture

Separates the left and right parietal bones.

Medial Palatine Suture

Separates the two palatine bones.

Frontonasal Suture

Connects the frontal bone to the nasal bones.

Intervertebral Disc

Cushioning pad between vertebrae.

Cervical Curvature

Neck region (C1-C7); concave curvature.

Thoracic Curvature

Upper back region (T1-T12); convex curvature.

Lumbar Curvature

Lower back region (L1-L5); concave curvature.

Sacrum

Triangular bone at the base of the spine; convex curvature.

Coccyx

Tailbone, small fused vertebrae.

Jugular Notch

Indentation at the top of the sternum.

Clavicular Notch

Area where the clavicle meets the sternum.

True Ribs

Ribs 1-7 that are directly attached to the sternum.

False Ribs

Ribs 8-12 that are indirectly or not attached to the sternum.

Floating Ribs

Ribs 11-12 that are not attached to the sternum at all.

Manubrium

Upper portion of the sternum.

Sternal Angle

Ridge where the manubrium meets the body of the sternum.

Body of Sternum

Main part of the sternum.

Xiphoid Process

Small cartilage tip at the bottom of the sternum.