Ch. 7 Axial Skeleton: Facial Bones Flashcards Preview

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Flashcards in Ch. 7 Axial Skeleton: Facial Bones Deck (12)
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How many bones make up the face?



List the facial bones (14)

Mandible (unpaired)
Vomer (unpaired)
2 Nasals
2 Lacrimals
2 Maxillae
2 Zygomatics
2 Palatine
2 Inferior Nasal Conchae


What are the paired lacrimal bones for?

Lacrimal groove is passage for duct for tears


What are the paired nasal bones for?

Form bridge of nose, attach to cartilages that form norse


What are the paired zygomatics for?

Form cheekbones



Form upper jaw (L and R)
Articulate w/ other facial bones except mandible

Alveolar process: contains teeth
Frontal processes: extends upward to reach frontal bone
Zygomatic processes: articulate w/ zygomatic bone
Infraorbital foramen: provides passage for infraorbital artery, vein, and nerve



supports eyes and muscles the move eyes + fat and tear producing glands

Walls formed by frontal, sphenoid, zygomatic, maxillary, palatine, lacrimal, and ethmoid bones


Cranial Base

Hard palate is composed of ventral maxillary bones and palatine bone

Vomer forms inferior portion of nasal septum


Cleft Palate

Failure of 2 sides of palate to join during development. Severity varies

Opening between mouth and nasal cavity makes effective nursing difficult

Can be repaired surgically w/ good outcomes



Largest, strongest bone in face

Body contains lower teeth; tooth sockets are on the superior border (alveolar process)

Mandibular symphysis (not visible) is where the 2 halves of the body form to join the chin (mental protuberance)

Mental foramen: opening below teeth for nerves/vessels

Condylar process: articulates w/ temporal bone to form TMJ

Coronoid process: serves as attachment site for temporalis muscle


Fetal/Infant Skull and Sutures

Fetal/infant skull bones not solidly joined - this allows head to deform as it passes through birth canal and allows for brain growth

Fontanelles ("soft spots"): sturdy membranous covering between cranial joints
--will fuse over time

By age 2, skull is 3/4 adult size
Between ages 6-13, face grows outward and develops more "adult" proportions



"free floating" bone in neck inferior to mandible

Only bone in skeleton that doesn't articulate w/ any other bone

Acts as base for tongue, site of muscle attachments for muscles that move larynx