The Skull

The most complex bony structure of the skeleton is divided into two regions The cranium: -encloses and protects the brain -provides attachment sites for head and neck muscles The facial bones: -numerous functions including cavities for special sense organs of sight, smell and taste.

eight cranial bones: 2 Parietal 2 Temporal Frontal Occipital Sphenoid Ethmoid Held firmly together by interlocking joints called sutures

Frontal Bone: supraorbital margins supraorbital foramens glabella

Parietal bones: coronal suture sagittal suture lambdoid suture squamous suture

Occipital bone: foramen magnum occipital condyles External occipital protuberance

Temporal bones: zygomatic process mandibular fossa external/internal acoutic meatus styloid process mastoid process jugular foramen Carotid canal

Sphenoid bone: (markings not on test) foramen spinosum foramen ovale foramen rotundum superior orbital fissure

Ethmoid bone: perpendicular plate middle nasal concha (not on test)

fourteen facial bones: mandible 2 maxillae 2 zygomatic 2 nasal 2 lacrimal 2 palatine 2 inferior nasal conchae vomer

Maxilla: zygomatic process Infraorbital foramen

Zygomatic: Zygomatic process

Lacrimal and Nasal:

Palatine:

Vomer

Mandible: mandibular condyles Coronoid process mental foramen