1. Suboccipital Triangle Made Easy Jonathan Abesamis May 10, 2010 Ross University School of Medicine Anatomy

2. Step 1: Draw the Bony Landmarks A) Draw a long horizontal line.

3. Step 1: Draw the Bony Landmarks A) Draw a long horizontal line.

4. Step 1: Draw the Bony Landmarks B) Draw 2 boxes, down the center.

5. Step 1: Draw the Bony Landmarks B) Draw 2 boxes, down the center.

6. Step 1: Draw the Bony Landmarks B) Draw 2 boxes, down the center.

7. Step 1: Draw the Bony Landmarks C) Draw 2 triangles, one on each side of the first box.

8. Step 1: Draw the Bony Landmarks C) Draw 2 triangles, one on each side of the first box.

9. Step 1: Draw the Bony Landmarks C) Draw 2 triangles, one on each side of the first box.

10. Step 2: Label the Bony Landmarks

11. Step 2: Label the Bony Landmarks Inferior Nuchal Line

12. Step 2: Label the Bony Landmarks Inferior Nuchal Line C1

13. Step 2: Label the Bony Landmarks Inferior Nuchal Line C1 C2

14. Step 2: Label the Bony Landmarks Inferior Nuchal Line Transverse Process of C1 C1 C2

15. Step 2: Label the Bony Landmarks Inferior Nuchal Line Transverse Process of C1 Spinous Process of C1 C1 C2

16. Step 2: Label the Bony Landmarks Inferior Nuchal Line Transverse Process of C1 Spinous Process of C1 C1 Spinous Process of C2 C2

17. Step 3: Draw the Muscles C1 C2

18. Step 3: Draw the Muscles C1 C2

19. Step 3: Draw the Muscles Rectus Capitus Minor C1 C2

20. Step 3: Draw the Muscles Rectus Capitus Minor C1 C2

21. Step 3: Draw the Muscles Rectus Capitus Minor Rectus Capitus Major C1 C2

22. Step 3: Draw the Muscles Rectus Capitus Minor Rectus Capitus Major C1 C2

23. Step 3: Draw the Muscles Superior Oblique Rectus Capitus Minor Rectus Capitus Major C1 C2

24. Step 3: Draw the Muscles Superior Oblique Rectus Capitus Minor Rectus Capitus Major C1 C2

25. Step 3: Draw the Muscles Superior Oblique Rectus Capitus Minor Rectus Capitus Major C1 C2 Inferior Oblique

26. Step 4: Recognize the movements of the muscles. C1 C2

27. Step 4: Recognize the movements of the muscles. C1 C2

28. Step 4: Recognize the movements of the muscles. Extension of the Neck C1 C2

29. Step 4: Recognize the movements of the muscles. Extension of the Neck C1 C2

30. Step 4: Recognize the movements of the muscles. Extension of the Neck Rotation of the Neck C1 C2

31. Step 4: Recognize the movements of the muscles. Extension of the Neck Rotation of the Neck C1 C2

32. Step 4: Recognize the movements of the muscles. Extension of the Neck Rotation of the Neck Lateral Bending of the Neck C1 C2

33. Step 5: Identify Major Structures Within the Triangle C1 C2

34. Step 5: Identify Major Structures Within the Triangle C1 C2

35. Step 5: Identify Major Structures Within the Triangle Posterior Ramus of C1 C1 C2

36. Step 5: Identify Major Structures Within the Triangle Posterior Ramus of C1 C1 C2

37. Step 5: Identify Major Structures Within the Triangle Vertebral Artery Posterior Ramus of C1 C1 C2

38. Step 5: Identify Major Structures Within the Triangle Vertebral Artery Posterior Ramus of C1 C1 C2

39. Step 5: Identify Major Structures Within the Triangle Vertebral Artery Posterior Ramus of C1 C1 Suboccipital Nerve (Spinal Nerve C1) **Motor Only C2

40. Step 5: Identify Major Structures Within the Triangle Vertebral Artery Posterior Ramus of C1 C1 Suboccipital Nerve (Spinal Nerve C1) **Motor Only C2

41. Step 5: Identify Major Structures Within the Triangle Vertebral Artery Posterior Ramus of C1 C1 Greater Occipital Nerve (Spinal Nerve C2) **Sensory & Motor Suboccipital Nerve (Spinal Nerve C1) **Motor Only C2

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