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Number of bones that make up Skull and Facial Bones
Skull consists of 8 Cranial bones and 14 Facial bones
Function of the skull
Provide protection for the brain and organs of vision, taste, hearing equilibrium, and smell. The bones also provide attachment for muscles that move the head and control facial expressions and chewin
Sutures
Immovable interlocking joints that join skull bones together.
Fontanels
Spaces between cranial bones that are filled with fibrous membranes. The spaces provide pliability for the skull when it passes through the birth canal and for brain growth during infancy. Bone growth
Cranial fossae
Three depressions in the floor of cranium and include anterior, middle, and posterior cranial fossae. Which provide space that accomadate shape of brain.
Sinuses
Mucus-lined cavities inside cranial and facial bones that surround nasal cavity. The cavities secrete mucus that drains into nasal cavity.
Cranial Bone: Frontal
Forehead; Eyebrow; Ceiling of the orbit (eye socket); this bone is unpaired (only 1).
Cranial Bone: Parietal Bone
Behind Frontal Bone; Right and left (technically).
Cranial Bone: Occipital Bone
External Occipital Protuberance- Bump at the end/behind of the head; Foramen Magnum- Brian connected to spinal cord comes out of cranium.
Cranial Bone: Temporal (Paired)
Major blood vessel entrances and exits. Arch of bone-reaches and attaches to cheek; All ear structure; Mastoid Process
Cranial Bone: Sphenoid Bone
Best viewed from inside of skull; unpaired (only 1); Runs all the way across skull; above pharynx
Cranial Bone: Ethmoid Bone
Sits in midst of frontal bone; Nasal septum; orbital plates; Olfactory foramina-allow nerves down to passages.
Facial Bones: Maxilla (pair right and left)
Forms the upper Jaw; Nasal floor/ceiling of mouth; meets frontal bone;
Facial Bones: Zygomatic Bone (paired)
Form prominence of cheeks; lateral wall of orbit.
Facial Bones: Nasal Bone
Bridge of nose.
Facial Bones: Lacrimal Bone
Inside of orbit; sits side by side with ethmoid bone
Facial Bones: Palatine Bone (pair)
Palate/roof of mouth; Horizontal plate.
Facial Bones: Mandible (Lower Jaw)
Lower Jaw.
Facial Bones: Nasal Kon-Ka (concha)
Superior;middle;inferior
Facial Bones: Vomer
Small thin bone that forms part of the septum between the nostrils.