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

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Unformatted text preview: 7-1Skeletal System:Gross Anatomy7-2Facts and Functions•206 bones in the human body•Provide framework•Provide levers upon which muscles act to move the body•Protection of organs•Mineral storage•Hematopoiesis•Components–Bones, Cartilage, Ligaments, Tendons, Muscle7-3Divisions of the Skeleton•Axial skeleton–80 bones–lie along longitudinal axis–Skull, hyoid bone, vertebrae, ribs, sternum, ear ossicles•Appendicular skeleton–126 bones–Upper & 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 Skull•Protects the brain, supports organs of vision, hearing, smell and taste•22 separate bones + 6 auditory ossicles•Two 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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This note was uploaded on 12/03/2009 for the course KINESIOLOG 1Y03 taught by Professor Parises during the Spring '09 term at McMaster University.

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

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