15 bone gross anatomy - 7-1Skeletal System:Gross...

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Unformatted text preview: 7-1Skeletal System:Gross Anatomy7-2Facts and Functions206 bones in the human bodyProvide frameworkProvide levers upon which muscles act to move the bodyProtection of organsMineral storageHematopoiesisComponentsBones, Cartilage, Ligaments, Tendons, Muscle7-3Divisions of the SkeletonAxial skeleton80 boneslie along longitudinal axisSkull, hyoid bone, vertebrae, ribs, sternum, ear ossiclesAppendicular skeleton126 bonesUpper & lower limbs and pelvic and pectoral girdles7-4Bone Surface Markings Surface features: rough area, groove, openings, process Specific functions: Passageway for blood vessels and nerves Joint formation Muscle, tendon and ligament attachment7-5The SkullProtects the brain, supports organs of vision, hearing, smell and taste22 separate bones + 6 auditory ossiclesTwo portions:1. Neurocranium 2 parietal, 2 temporal, 1 frontal, 1 occipital, 1 sphenoid, 1 ethmoid2. Viscerocranium 2 maxilla, 2 zygomatic, 2 palatine, 2 lacrimal, 2 nasal, 2 inferior nasal conchae, 1 mandible, 1 vomer7-6The SkullLateral ViewTemporal boneExternal acoustic meatusZygomatic processof temporal boneTemporal processof zygomatic boneZygomaticarchFrontal boneZygomatic boneMaxillaMandibleSphenoid bone (greater wing)Occipital boneParietal bone7-7The SkullAnterior ViewFrontal boneSphenoid bone(greater wing)Nasal boneZygomatic boneVomerMaxillaPerpendicular plateof ethmoid boneNasalseptumMiddle nasal conchaInferior nasal concha7-8Bones of the Orbit...
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15 bone gross anatomy - 7-1Skeletal System:Gross...

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