Chapter 11 - Facial Bones/Orbits/Nasal Bones Flashcards
How many facial bones are there?
14
What are the 14 facial bones
2 maxillary
2 zygomatic
2 lacrimal
2 nasal
2 nasal conchae
2 palatine
1 vomer
1 mandible
What is the largest immovable bone of the face
Maxillary
Where are the maxillary bones anchored
Below the nasal septum
What are the 3 cavities that maxilla assists with
Mouth
Nasal cavity
One orbit
What are the 4 processes projecting from the body of maxilla
Frontal
Zygomatic
Alveolar
Palatine
What are embedded in cavities along the inferior margin of the alveolar process
Eight upper teeth
What do the palatine processes form
Roof of the mouth
Congenital defect where the palatine bones do not unite
Cleft palate
What forms the posterior part of the hard palate
Palatine bones
The zygomatic bones are located _______ to the zygomatic process
Lateral
The zymomatic bones form the prominent part of the __________ and make up the lower outer portion of each ________
Cheek
Orbit
What makes up the zygomatic arch
Zygomatic bone and zygomatic process of the temporal bone
Thinnest and most delicate bones of the body
Lacrimal and nasal bones
What does lacrimal mean
Tears
Lacrimal is the size and shape of a
Fingernail
Lacrimal is located _________ on the medial side of the orbit
Anteriorly
What forms the bridge of the nose
2 nasal bones
Where are the nasal bones in comparsion to the frontal process of the maxillae
Anterior and superior
Nasal conchae project from the ________ walls of the nasal cavities
Lateral
Superior and middle nasal conchae are formed from what bone
Ethmoid
Function of nasal conchae
Break the flow of air coming in through the nose
Cleans and warms the air as it comes in contact with the mucous membrane
Location of the vertical portion of the palatine bone
Between pterygoid plate of the sphenoid bone and maxilla
Horizontal portion of the palatine bone makes up
Posterior portion of the hard palate
What does vomer mean
Plowshare
What makes up the nasal septum
Vomer and perpendicular plate of the ethmoid bone
Anteriorly the bony nasal septum is cartilaginous and called the
Septal cartilage
Where does a deviated septum usually occur
Junction between the septal cartilage and the vomer
Surface of the vomer bone is marked by:
Small furrow-like depressions for blood vessels
Where is the source of the noseblood when these is trauma to the nose
Vomer
What is the thin/horse-shaped bone
Mandible
What is the largest facial bone
Mandible
What is the only moveable bone in the skull
Mandible
Mandible is 2 bones from birth until:
1 year