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Skeletal system powerpoint


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Skeletal system powerpoint

  1. 1. Skeletal SystemSkeletal System
  2. 2. The Skeletal System in Action !!The Skeletal System in Action !! ► The Skeletal System in Action!The Skeletal System in Action!
  3. 3. 5 Functions of the Skeletal5 Functions of the Skeletal SystemSystem 1. Movement:1. Movement: SkeletalSkeletal system provides points ofsystem provides points of attachment for muscles.attachment for muscles. Your legs and arms moveYour legs and arms move when the muscles pull onwhen the muscles pull on the bones.the bones. 2. Support:2. Support: The backboneThe backbone is the main supportis the main support center for the uppercenter for the upper body.body. It holds your headIt holds your head up and protects yourup and protects your spinal cord.spinal cord. Muscle attached to bones!!Muscle attached to bones!!
  4. 4. 5 Functions of the Skeletal5 Functions of the Skeletal SystemSystem 3.3. Protection:Protection: The bones ofThe bones of your skull protect youryour skull protect your brain. Your ribs protectbrain. Your ribs protect your lungs and heartyour lungs and heart from injury.from injury. 4.4. Makes Blood:Makes Blood: Red andRed and white blood cells arewhite blood cells are formed by tissue calledformed by tissue called marrow,marrow, which is in thewhich is in the center of the of the bone.
  5. 5. 5 Functions of the Skeletal5 Functions of the Skeletal SystemSystem ► 5. Storage:5. Storage: BonesBones store mineralsstore minerals, such, such as calcium andas calcium and phosphorus, for usephosphorus, for use by the bodyby the body
  6. 6. Two Major Skeletal System PartsTwo Major Skeletal System Parts ► Axial Skeleton:Axial Skeleton: The axialThe axial skeleton includes theskeleton includes the skull, spine, ribs andskull, spine, ribs and sternum.sternum. ► Appendicular Skeleton:Appendicular Skeleton: The appendicularThe appendicular skeleton includesskeleton includes thethe appendages of the body,appendages of the body, which are the shoulders,which are the shoulders, arms, hips, and legs.arms, hips, and legs.
  7. 7. Skeletal System BonesSkeletal System Bones ►Four basic bone shapesFour basic bone shapes  1. Long- arms, legs and fingers1. Long- arms, legs and fingers  2. Short- wrist and ankles2. Short- wrist and ankles  3. Flat- skull and sternum3. Flat- skull and sternum  4. Irregular- spine4. Irregular- spine
  8. 8. Bone StructureBone Structure ► Typical Four Layers:Typical Four Layers:  Periosteum:Periosteum: CoversCovers BonesBones  Compact Bone:Compact Bone: LiesLies beneath thebeneath the periosteumperiosteum  Spongy Bone:Spongy Bone: LiesLies beneath the compactbeneath the compact bonebone  Bone Marrow:Bone Marrow: Fills theFills the gaps between thegaps between the spongy bonespongy bone
  9. 9. Bones of the CraniumBones of the Cranium ► Some are thickerSome are thicker than others!!!than others!!!
  10. 10. Cranium BonesCranium Bones Frontal Bone Occipital Bone Temporal Bone Parietal Bone Parietal Bone
  11. 11. Maxilla and MandibleMaxilla and Mandible Maxilla Mandible ?
  12. 12. Clavicle or CollarboneClavicle or Collarbone ► TheThe clavicleclavicle, or collar, or collar bone,bone, holds theholds the shoulder joint awayshoulder joint away from the rest of thefrom the rest of the upper bodyupper body and is onlyand is only as thick as your littleas thick as your little finger.finger.
  13. 13. ScapulaScapula ► TheThe scapulascapula isis located on the backlocated on the back side of the ribcage andside of the ribcage and helps provide part ofhelps provide part of the shoulder joint andthe shoulder joint and movement for themovement for the arms.arms.
  14. 14. Vertebral Column or Spinal CordVertebral Column or Spinal Cord 1) The1) The cervical regioncervical region (neck(neck bones) bones)     2) The2) The thorasic regionthorasic region (what the(what the ribs attach to)ribs attach to) 3) The3) The lumbar regionlumbar region (the lower(the lower part of the back)part of the back)  
  15. 15. Coccyx and SacrumCoccyx and Sacrum
  16. 16. Humerus (Upper Arm Bone)Humerus (Upper Arm Bone)
  17. 17. Radius and UlnaRadius and Ulna ►Radius on TopRadius on Top ►Ulna on BottomUlna on Bottom
  18. 18. Carpals or (Wrist Bones)Carpals or (Wrist Bones)
  19. 19. Metacarpals (Top of Hands)Metacarpals (Top of Hands)
  20. 20. Phalanges (Little Fingers)Phalanges (Little Fingers)
  21. 21. Rib CageRib Cage
  22. 22. Sternum (Breastbone)Sternum (Breastbone)
  23. 23. Pelvis (Dancing Bone)Pelvis (Dancing Bone)
  24. 24. FemurFemur (Largest Bone in the Body)(Largest Bone in the Body)
  25. 25. The Tibia and FibulaThe Tibia and Fibula
  26. 26. TarsalsTarsals
  27. 27. MetatarsalsMetatarsals
  28. 28. PhalangesPhalanges
  29. 29. CalcaneousCalcaneous
  30. 30. Skeletal System ReviewSkeletal System Review My Videoswholebodyskeleton.movMy
  31. 31. Joints of the BodyJoints of the Body ► Ball and SocketBall and Socket Joint:Joint: Round end ofRound end of bone fitting snugglybone fitting snuggly within another bonewithin another bone..  Ex. Shoulder and HipEx. Shoulder and Hip
  32. 32. Joints of the BodyJoints of the Body ► Hinge Joint:Hinge Joint: Movement at joint inMovement at joint in one directionone direction like alike a door.door.  Ex. Knee and ElbowEx. Knee and Elbow
  33. 33. Joints of the BodyJoints of the Body ► Pivot Joint:Pivot Joint: BoneBone resting atop anotherresting atop another bone permitting freebone permitting free movement.movement.  Ex. Neck, Wrist andEx. Neck, Wrist and AnklesAnkles
  34. 34. Joints of the BodyJoints of the Body ► Fixed Immovable:Fixed Immovable: Joint does not moveJoint does not move  Ex. SkullEx. Skull ► Gliding Joint:Gliding Joint: BonesBones slipping over otherslipping over other bones with a freebones with a free flowing movement.flowing movement.  Ex. KnucklesEx. Knuckles
  35. 35. The Connectors of the BodyThe Connectors of the Body ► Ligaments:Ligaments: ConnectConnect bone to bonebone to bone
  36. 36. The Connectors of the Body!!The Connectors of the Body!! ►Tendon:Tendon: Attaches muscles to bonesAttaches muscles to bones
  37. 37. The Connectors of the BodyThe Connectors of the Body ►Cartilage: It acts as aCartilage: It acts as a cushion betweencushion between bones at a jointbones at a joint and protects the bones.and protects the bones.
  38. 38. Problems of the Skeletal SystemProblems of the Skeletal System ► Fracture:Fracture: BreakBreak ► Dislocation:Dislocation: Out ofOut of jointjoint
  39. 39. Problems of the Skeletal SystemProblems of the Skeletal System ► Sprain:Sprain: Swelling inSwelling in the jointthe joint ► Arthritis:Arthritis: InflamedInflamed and stiff jointsand stiff joints
  40. 40. Problems of the Skeletal System!!Problems of the Skeletal System!! ► Scoliosis:Scoliosis: CurvatureCurvature of the spineof the spine ► Osteoporosis:Osteoporosis: BrittleBrittle bonesbones