The skeletal system


Published on

The Human Skeletal System: Answers to last week's worksheet

Published in: Technology, Health & Medicine
  • Be the first to comment

  • Be the first to like this

No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

The skeletal system

  1. 1. Radius Skull Femur (thigh bone) Shoulder joint Rib cage Patella (knee cap) Spine Clavicle (collar bone) Pelvis Foot bones Directions: Fibula (chin bone) Match the bone Tibia (ankle) vocabulary withthe bones on the Humerushuman skeleton. RadiusRecord the terms Ulna one the mini skeleton Hand bones worksheet.
  2. 2. 1. What is the skeletal system made of?BoneCartilage (spongy tissue between bones and joints)Muscle (that attach themselves and allow us to move many different ways)
  3. 3. 2. How many bones are there is the human skeleton? 206
  4. 4. 3. What are the largest and smallest bones in our body? • Largest “Femur” • AKA thigh bone • Usually grows to about 2 feet long • Smallest “Stirrup” • Located in your ear and looks like a stirrup on a saddle used for horseback riding HINT
  5. 5. 4. What are the 3 main functions of the skeletal system?Provides structure, enables you to stand upProtects delicate organs and tissue (e.g. your skull protect your brain, your ribcage acts like armour for your and HINTMuscles attach themselves to bone, allows you to move
  6. 6. 5. Why is it necessary for our survival?• Without bones, you would just be a puddle of skin and guts on the floor
  7. 7. 6. How do our bones grow?• They fuse or grow together to form larger bones
  8. 8. 7. How does a baby’s skeletal system compare to a full grown adult’s skeletal system?• Babies are made mostly of cartilage. The cartilage grows and thickens. Over time, its replaced by bones.• Babies are born with over 300 bones• A full grown adult has only 206 bones• Why? The cartilage and bone fused together over time as the baby grows to be an adult
  9. 9. Bone Cartilage is spongy tissue often located between joints to prevent them from rubbingCartilage together. We also have cartilage in our nose and ears.
  10. 10. 8. Can we do anything to help our bones grow better and stronger?• Drink milk, eat lots of low-fat dairy products• This provides lots of calcium• Be active. Exercise!
  11. 11. 9. What are the different ways bones can be injured?• Complete fracture: bone is in 2 pieces• Greenstick fracture: crack on one side, not all the way through• Single fracture: broke in one place• Communicated fracture: in more than 2 pieces or is crushed• Bowling fracture: bends but does not break. Most common in kids• Open fracture: sticking through the skin
  12. 12. Both animals and humans can break bones …
  13. 13. 10. How does a doctor diagnose types of breaks?• The doctor has the technician take an x-ray so they can see the damage beneath the skin and determine what type of break/fracture occurred.
  14. 14. Carefully examine these xrays.Can you determine which bone has been broken or fractured?
  15. 15. Oh my! What have we here?!
  16. 16. What about here?!
  17. 17. 11. How are a break and a fracture different? The mean the SAME thing! Break = Fracture Fracture = Break I will need two brave volunteers…
  18. 18. 12. How should a break/fracture be treated so it heals properly?• Step 1: determine the type of break• Step 2: set it (re-break, surgery, pins etc.)• Step 3: wrap it in a special bandage• Step 4: cast is required Role Playing Volunteer 1: X-ray Technician Volunteer 2: Unlucky Patient Ms. St. Louis: Doctor
  19. 19. 13. What is the difference between a vertebrate and an invertebrate?
  20. 20. A Few Examples Sa0 What would you classify a Sea Cucumber as? Sa0
  21. 21. Let’s Infer …The Sea Cucumber• I know a Sea Cucumber lives in the sea• It’s long and narrow like a cucumber or a balloon• The Bill Nye video that we the saw yesterday said many invertebrates live in water because they can move despite not having a backbone• They used a balloon to demonstrate how an invertebrate moves
  22. 22. Skeletal Comparison Project* You may work with a partner. Use the required format. Must include minimal of 3 examples for each criteria.Step 1:Choose 2 animals and compare their skeletons. Find an image of both, copy and paste them onto your chart. Make sure they are small enough to fit your chart.Step 2:Using the chart provided, list POINT FORM how they are similar and how they are different from each other and from the human skeletal system?* Remember, our focus is the skeletal system NOT where they live, what they eat, fur or no fur, etc.
  23. 23. Skeletal Comparison Chart Skeletal Animal # 1 Animal # 2 Criteria ________________ ________________ INSERT IMAGE HERE INSERT IMAGE HERE 3 similarities betweentheir skeletons (A1 & A2) 3 differences betweentheir skeletons (A1 & A2)3 ways A1 is the same as a human skeleton? A2? 3 ways A1 is differentfrom a human skeleton? A2?
  24. 24. Checklist 1: Poor 2: Fair 3: Good 4: Very Good 5: ExcellentAccuracy Limited Some Accurate Accurate, Accurate, accuracy. accuracy. For comparison. comparison. thoughtful, Simple or the most part, Original. For the most unique easy simple or part, comparison. comparison. easy thoughtful or comparison. unique.Focus Often loses Sometimes Maintains Maintains Maintains focus loses focus good focus very good strong focus focusOrganization Poorly A bit wordy. Fairly well Well worded. Very well worded. Too general, a worded. For Specific and worded. Very Vague. bit difficult to the most part, easy to specific. Clear Difficult to understand. specific and understand. explanation. understand. easy to understand.
  25. 25. Checklist 0 = Incorrect, 1= Poor, 2= Fair, 3: Good, 4: Very Good, 5: Excellent * Total project is out of 45 points. Skeletal Animal # 1 Animal # 2 Additional marks Criteria ________________ ________________ INSERT IMAGE HERE INSERT IMAGE HERE • 2 points for accurate and clear 3 similarities image for A1 & A2. between their 0,1,2,3,4,5 0,1,2,3,4,5skeletons (A1 & A2) •2 point for following 3 differences between their 0,1,2,3,4,5 0,1,2,3,4,5 the required formatskeletons (A1 & A2) (e.g. chart, point 3 ways A1 is the form). same as a human 0,1,2,3,4,5 0,1,2,3,4,5 skeleton? A2? •1 points for citing 3 ways A1 is your sources different from a 0,1,2,3,4,5 0,1,2,3,4,5 human skeleton? properly. A2?