7.3 The Skull Reagan Winter Flashcards
Cranium
Encloses and protects the brain.surface provides attachments for muscles.
Sinus
Air filled cavities lined with mucous membranes and connected by passageways to the nasal cavity.
Frontal Bone
Forms the anterior portion of the skull above the eyes.
Parietal Bone
Form the bulging sides and roof of the cranium.
Occipital Bone
Forms the back of the skull and base of the cranium.
Temporal Bone
Forms parts of the sides and the base of the cranium.
Sphenoid Bone
Helps form the base of hot cranium, the sides of the skull, and the floors and sides of the orbits.
Ethmoid Bone
Located in front of the sphenoid bone. Consists of two masses, one on each side of the nasal cavity.
Facial skeleton
Consists of thirteen immovable bones and a movable lower jawbone. These bones form the basic shape of the face.
Maxillae
Forms the upper jaw.
Palatine bones
L-shaped bones located behind the maxillae. These bones form the posterior section of the hard palate and the floor of the nasal cavity.
Zygomatic Bones
Form the prominence of the cheeks below and to the sides of the eyes.
Lacrimal bones
Thin, scale like structure located in the medial wall of each orbit between ethmoid bone and the maxilla.
Nasal bones
Long, thin, and nearly rectangular. They lie side by side and are fused at the midline, where they form the bridge of the nose.
Vomer bones
Thin and flat. Located along the midline within the nasal cavity.
