chapter 8 Flashcards
bones in the adult skeleton
206
forms vertical, central axis of the body
axial
80 bones in total
axial
bones in axial
skull, vertebral column, ribs, sternum
forms upper and lower extremities
appendicular
126 in total
axial
typically more moveable and different in shape
appendicular
number of bones in the skull
22
two groups of the skull
cranial and facial
cranial bones
frontal, parietal, occipital, temporal, sphenoid, ethmoid
facial bones
mandible, maxillae, lacrimal, nasal, palatine, zygomatic, inferior nasal conchae, vomer
houses softer structures
cavities
cavities of the skull
cranial, orbits, nasal, oral, paranasal
forms superior lateral sides of the skull
parietal bones
forms posterior skull and posterior base of the cranial cavity
occipital bone
form lower lateral sides of the skull
temporal bones
forms much of the base of the central skull and part of the temples
sphenoid bone
forms part of orbit and nasal cavity
ethmoid bone
forms lower jaw
mandible
only moveable bone of skull
mandible
forms the upper jaw, most of the mouth, part of the orbit, and the lateral base of the nose
maxillary bone
forms part of orbit, contain lacrimal glands that secrete tears
lacrimal bones
form posterior portion of hard palate, medial part of orbit, and contributes to vertical section of nasal cavity
palatine bones
cheekbones, forms much of the lateral part of orbit
zygomatic bones
