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The Bones
Short List
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Types of Bones
1) Long bones – bones of the upper and lower arms
and legs as well as the metacarpals and
metatarsals.
2) flat bones – sternum, ribs, scapulae, cranium
3) short bones – carpals and tarsals
4) irregular bones – vertebrae
5) sesamoid bones – patellae
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2
Skeletal Divisions
1) Axial skeleton – skull, sternum, ribs, and vertebrae
(including sacrum)
2) Appendicular skeleton – bones of the pectoral and
pelvic girdles and of the arms, legs, wrists, hands,
ankles, and feet.
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Figure 7.3 a
Frontal (coronal) suture
Sphenoid
bone
Parietal bone
Squamosal
(temporal)
suture
Frontal bone
Occipital
(lamdoidal)
suture
Nasal bone
Occipital
bone
Zygomatic
bone
Maxilla
Temporal bone
Mandible
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Important: the
mastoid process
(important site for attachment of
muscles such as the sternocleidomastoid), the
external acoustic
meatus
(opening into the parts of the ear), the articulation of the
temporal bone and mandible ( the
TMJ)
, and the
zygomatic arch
, all
on the temporal bone.
4
Temporal Bone
External acoustic
meatus
Zygomatic
process (arch)
Mastoid process
Styloid process
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