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facial bones
Question | Answer |
---|---|
nasal bones | paired and form bridge of nose. rest of nose formed by hyaline cartilage |
lacrimal bones | make up part of eye orbit. feature: nasal lacrimal canal. contains nasal lacrimal duct (carries tears from eyes to nasal cavity) |
maxilla: features | forms upper jaw maxillary sinus infraorbital foramen: opening for nerves and blood vessels to pass through |
Maxilla: alveolar process | contains sockets teeth go in |
maxilla: incisive fossa | opening for nerves and blood vessels to pass through |
Maxilla: hard palate | forms anterior part of roof of mouth. made up of planetary maxilla bones and horizontal plate of palatine bone |
zygomatic bone | makes up bottom of eye orbit makes up part of zygomatic arch |
mandible: features | condylar process projection, at end of process in mandibular condyle. coronoid process (muscle attachment). mental foramen. mandibular foramen. alveolar process of mandible. |
4 pairs of sinuses | frontal, ethmoidal, sphenoidal, maxillary |
sinuses functions | all lined with mucus membrane. exact function is not well known. lightens skull, makes voice louder. all have ducts that drain into nasal cavity. |