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anatomy chapter 7-bones
bone names
17
Anatomy
12th Grade
01/04/2010

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Term
cranium
Definition
encloses and protects brain
Term
frontal bone
Definition
forms anterior portion of the skull above the eyes (the forehead)
Term
parietal bones (2)
Definition
one on each side of the skull, posterior to frontal bone. forms sides and roof of the cranium
Term
occipital bone
Definition
forms back of skill and base of cranium.
Term
foramen magnum
Definition
opening in the lower surface, nerve fibers pass through from brain to enter vertebral canal
Term
occipital condyles
Definition
rounded processes on each side of the foramen magnum, articulate with first vertebra
Term
temporal bones (2)
Definition
form parts of the sides and base of the cranium. located near the inferior margin is an opening that leads to the internal ear.
Term
sphenoid bone
Definition
central bone of the skull
Term
ethmoid bone
Definition
forms most of the upper nasal region
Term
maxillary bones
Definition
form the upper jaw
Term
zygomatic bones
Definition
inferior and lateral to the eyes. form the cheeks.
Term
zygomatic arch
Definition
joins the zygomatic and temporal bones
Term
nasal bones
Definition
form the bridge of the nose
Term
mandible
Definition
the lower jawbone. only moveable bone in skull
Term
lacrimal bones
Definition
smallest bone of the face. form medial wall of each orbital cavity. each has an opening through which tear ducts enter the nasal cavity
Term
infantile skull
Definition
incompletely developed bones are separated by soft, membraneous areas.
Term
hyoid bone
Definition
located in the neck between the mandible and the larynx. not attached to any other bone. supports the tongue
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