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The Basics:Bones andMuscles
Bones The   bones in your body have 3 main jobs:    1. protection    2. muscle attachment    3. support Each   of you...
Bone Functions   The following 5 slides highlight several    important bones in your bodies.   Find each bone/s.   Thin...
Vertebrae1. Find the vertebrae2. Hypothesize what the   job/s of the vertebrae   are
Skull (Cranium)1. Find the skull (cranium)2. Hypothesize what the   job/s of the cranium are
Leg Bones(femur, tibia and fibulla)1. Find the leg bones2. Hypothesize what the   job/s of the leg bones   are
Pelvis1. Find the pelvis2. Hypothesize what the   job/s of the pelvis are
Phalanges1. Find the phalanges2. Hypothesize what the   job/s of the phalanges   are
How did you do?   Protection       Support         Muscle                                  Attachment• Vertebrae     • Ver...
Skeletal Muscles The main job of skeletal muscles is to pull bones When a skeletal muscle contracts, a bone is pulled
Skeletal Muscle Fibers Skeletalmuscles are composed of skeletal muscle fibers When these fibers contract, the muscle sho...
Skeletal Muscle Cells                     Cell   Cells are very    organized   Unlike most cells,    skeletal muscle cel...
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Muscular and skeletal systems: The Basics

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Muscular and skeletal systems: The Basics

  1. 1. The Basics:Bones andMuscles
  2. 2. Bones The bones in your body have 3 main jobs:  1. protection  2. muscle attachment  3. support Each of your bones may have more than 1 job
  3. 3. Bone Functions The following 5 slides highlight several important bones in your bodies. Find each bone/s. Think about where the bone/s are located in your body Try to determine what the function of each bone/s is (protection, muscle attachment and/or support)
  4. 4. Vertebrae1. Find the vertebrae2. Hypothesize what the job/s of the vertebrae are
  5. 5. Skull (Cranium)1. Find the skull (cranium)2. Hypothesize what the job/s of the cranium are
  6. 6. Leg Bones(femur, tibia and fibulla)1. Find the leg bones2. Hypothesize what the job/s of the leg bones are
  7. 7. Pelvis1. Find the pelvis2. Hypothesize what the job/s of the pelvis are
  8. 8. Phalanges1. Find the phalanges2. Hypothesize what the job/s of the phalanges are
  9. 9. How did you do? Protection Support Muscle Attachment• Vertebrae • Vertebrae • Vertebrae• Cranium • Leg Bones • Cranium• Pelvis • Pelvis • Leg Bones • Pelvis • Phalanges
  10. 10. Skeletal Muscles The main job of skeletal muscles is to pull bones When a skeletal muscle contracts, a bone is pulled
  11. 11. Skeletal Muscle Fibers Skeletalmuscles are composed of skeletal muscle fibers When these fibers contract, the muscle shortens
  12. 12. Skeletal Muscle Cells Cell Cells are very organized Unlike most cells, skeletal muscle cells contain many nuclei  Why do you think skeletal muscle cells have so many nuclei? Nucleus

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