Importance of the skeletal system

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Importance of the skeletal system

  1. 1. The Importance of the Skeletal System 1.Framework for Shape The skeletal system gives shape to the body . Without the skeletal system, the body will look like a paper kite without a rigid frame. 2. For Support and Anchorage The skeletal system supports the body weight . Without the bones, you cannot stand or sit erect.
  2. 2. The skeletal system also supports the body by serving as a framework and attachment for tendons, muscles, skin and visceral organs. The muscles in your arms remain in your arms. Your heart and lungs remain in your chest. Your eyes, nose, and ears remain in your face. This is possible because your bones provide an anchorage on which the different soft parts of your bodies remain in place.
  3. 3. The skeletal system also provides body support. Below is the chart showing some bones and the support they provide. BONES SUPPORT Pelvic girdle Supports spinal column and legs Spinal column Makes body straight; supports head Sternum Anchorage for the ribs in front
  4. 4. BONES SUPPORT Femur Bears weight of upper body Shoulder girdle Supports arms 3. For Protection of Vital Organs The skeletal system protects the body by enclosing the vital organs such as the brain, marrow, lungs, heart and other internal organs.
  5. 5. Bones Vital Organs Protected Skull brain, ears, eyes, nose Ribs heart, lungs, internal organs Short and long bones marrow Vertebrae Spinal cord Pelvic girdle reproductive organs
  6. 6. 4. For Locomotion and Movement The skeletal system permits movement and locomotion by responding to the contractive activities of skeletal muscles at certain joints. Skeletal muscles are muscles which attached to the bones.
  7. 7. Bones Movements Allowed Limbs walk, run, jump, carry load Manual phalanges handling objects, picking up, writing, hand movements/flexibility Pedal phalanges balancing weight; flexibility of toes Vertebrae Head and neck movements; straight body Axial bones head and torso movement Hip bones/pelvis leg movements, sitting
  8. 8. Bones Movements Allowed Mandible ( lower jaw ) chewing Radius and ulna Rotation of the hand

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