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The Muscular System: Agonists and Antagonists

The Muscular System: Agonists and Antagonists. 10. What does a muscle’s name tell us?. Name and description of the muscle – sometimes in name itself (Example: occipitalis)

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The Muscular System: Agonists and Antagonists

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  1. The Muscular System: Agonists and Antagonists 10

  2. What does a muscle’s name tell us? • Name and description of the muscle – sometimes in name itself (Example: occipitalis) • Origin and insertion – there is always a joint between the origin and insertion (Example: biceps brachii – origin has two heads, crosses elbow distal to upper arm) • Action– easy to remember it by acting out a muscle’s movement on your own body (Example: extensor carpi digitorum)

  3. Example: Muscles Crossing the Elbow Forearm extension • The triceps brachii is the prime mover of forearm extension Forearm flexion • Brachialis and biceps brachii are the chief forearm flexors • The brachioradialis acts as a synergist and helps stabilize the elbow

  4. Major Skeletal Muscles: Anterior View • The 40 superficial muscles here are divided into 10 regional areas of the body Figure 10.4b

  5. Major Skeletal Muscles: Posterior View • The 27 superficial muscles here are divided into seven regional areas of the body Figure 10.5b

  6. Quiz • Number notebook paper 1-10 • You may use your notes • For each picture, name one agonist muscle (one that contracts) and one antagonist muscle (one that relaxes)

  7. 1. Example

  8. 1. Example Agonist: Biceps brachii Antagonist: Triceps brachii

  9. 2. Agonist: Antagonist:

  10. 3. Agonist: Antagonist:

  11. 4. Agonist: Antagonist:

  12. 5. Agonist: Antagonist:

  13. 6. Agonist: Antagonist:

  14. 7. Agonist: Antagonist:

  15. 8. Agonist: Antagonist:

  16. 9. Agonist: Antagonist:

  17. 10. Agonist: Antagonist:

  18. Share answers

  19. 2. Agonist: Antagonist:

  20. Major Skeletal Muscles: Anterior View • The 40 superficial muscles here are divided into 10 regional areas of the body Figure 10.4b

  21. Major Skeletal Muscles: Posterior View • The 27 superficial muscles here are divided into seven regional areas of the body Figure 10.5b

  22. 3. Agonist: Antagonist:

  23. Major Skeletal Muscles: Anterior View • The 40 superficial muscles here are divided into 10 regional areas of the body Figure 10.4b

  24. Major Skeletal Muscles: Posterior View • The 27 superficial muscles here are divided into seven regional areas of the body Figure 10.5b

  25. 4. Agonist: Antagonist:

  26. Major Skeletal Muscles: Anterior View • The 40 superficial muscles here are divided into 10 regional areas of the body Figure 10.4b

  27. Major Skeletal Muscles: Posterior View • The 27 superficial muscles here are divided into seven regional areas of the body Figure 10.5b

  28. 6. Agonist: Antagonist:

  29. 5. Agonist: Antagonist:

  30. Major Skeletal Muscles: Anterior View • The 40 superficial muscles here are divided into 10 regional areas of the body Figure 10.4b

  31. Major Skeletal Muscles: Posterior View • The 27 superficial muscles here are divided into seven regional areas of the body Figure 10.5b

  32. Major Skeletal Muscles: Anterior View • The 40 superficial muscles here are divided into 10 regional areas of the body Figure 10.4b

  33. Major Skeletal Muscles: Posterior View • The 27 superficial muscles here are divided into seven regional areas of the body Figure 10.5b

  34. 7. Agonist: Antagonist:

  35. Major Skeletal Muscles: Anterior View • The 40 superficial muscles here are divided into 10 regional areas of the body Figure 10.4b

  36. Major Skeletal Muscles: Posterior View • The 27 superficial muscles here are divided into seven regional areas of the body Figure 10.5b

  37. 8. Agonist: Antagonist:

  38. Major Skeletal Muscles: Anterior View • The 40 superficial muscles here are divided into 10 regional areas of the body Figure 10.4b

  39. Major Skeletal Muscles: Posterior View • The 27 superficial muscles here are divided into seven regional areas of the body Figure 10.5b

  40. 9. Agonist: Antagonist:

  41. Major Skeletal Muscles: Anterior View • The 40 superficial muscles here are divided into 10 regional areas of the body Figure 10.4b

  42. Major Skeletal Muscles: Posterior View • The 27 superficial muscles here are divided into seven regional areas of the body Figure 10.5b

  43. 10. Agonist: Antagonist:

  44. Major Skeletal Muscles: Anterior View • The 40 superficial muscles here are divided into 10 regional areas of the body Figure 10.4b

  45. Major Skeletal Muscles: Posterior View • The 27 superficial muscles here are divided into seven regional areas of the body Figure 10.5b

  46. Give yourself a grade you think is fair

  47. Tomorrow http://www.youtube.com/watch?v=k1bYktxgScI&feature=related http://www.youtube.com/watch?v=SDANht5JPmg&feature=related

  48. Chicken wing anatomy

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