A&P Facial bone, sutures, fontanels
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Terms in this set (30)
Name the bones of the facial skeleton
Lacrimal bones (2), Nasal bones (2), Maxillae (2), zygomatic bones (2), palatine bones (2), inferior nasal conchae (2), mandible and vomer
Which of the bones of the facial skeleton is unpaired?
mandible and vomer
What is a cleft palate?
Lack of union of maxillary bones
Which of the facial bones make up the cheekbones?
Which of the nasal conchae is part of the facial skeleton?
Inferior nasal concha
Which of the nasal conchae is part of the cranium?
superior and middle nasal conchae
What is purpose of inferior nasal concha?
Increase vascular surface: warm air, cause inhaled air to swirl and impact mucus: filter air
What does the superior nasal concha do that the middle and inferior nasal concha do not?
participate in sense of smell (olfactory receptors)
What does the lacrimal fossa house?
What goes through the mandibular foramen?
Inferior alveolar nerve of the CN V3 (mandibular branch)
Which bone forms the back part of hard palate?
Which bone forms the posterior part of the nasal septum?
What is a deviated nasal septum?
lateral deflection of the septum from the midline
How many bones of the skull form the orbit?
How many important foramina are associated with each orbit?
Name the foramina associated with each orbit.
Optic foramen, superior orbital fissure, inferior orbital fissure, supraorbital foramen, and lacrimal fossa
Name the bones of the orbit.
Zygomatic, palatine, maxilla, lacrimal, ethmoid, sphenoid, frontal
Name the lesser sutures.
frontosygomatic, sphenofrontal, sphenosquamosal, temperozygomatic
Name the primary sutures.
Coronal, sagittal, lamboid, squamous
What are fontanels?
Dense connective tissue membrane-filled spaces between the cranial bones of fetuses and infants
Name the major fontanels.
Anterior, Posterior, Anterolaterals, Posterolaterals
What are the functions of the fontanels.
Enable the fetal skull to modify its size and shape as it passes thru the birth canal and permit rapid growth of brain during infancy
What are paranasal sinuses?
Paired cavities in bones of skull that communicate with the nasal cavity
What is the function of the paranasal sinuses?
To lighten the skull and serve as resonating chamber for speech
What are the paranasal sinuses lined with?
Which cranial bones contain the paranasal sinuses?
Frontal, sphenoid, ethmoid, maxillae
What is a nasal septum?
Vertical partition that divides nasal cavity into left and right sides
On what bone is the crista galli found?
Where is the crista galli on the ethmoid bone?
On the superior tip of the bone in the center of the ethmoid bone
What action is similar to that of a cyclone air filter?
Air swirling in ethmoid bone to impact mucus and filter air
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