Card Set Information

2014-12-06 20:59:42

Show Answers:

  1. how do we prevent superimposition of the gonion over the cspine
    have patient close the mouth and bring teeth together
  2. the head in a true lateral demosntrates what part of the mandible
  3. A 30 deg rotation toward the IR best demonstrates what part of the mandible
    body of mandible
  4. a 45 deg rotation best demonstrates what part of the mandible
  5. what deg of rotation reveals a general survey of the mandible
    10-15 deg
  6. for the horizontal trauma position of the lateral mandible how much angle is on the cr 
    and posterior angle of
    • 25 deg cephalad from IPL 
    • 5-10 deg
  7. the lateral position of the mandible demonstrates what structures closest to the IR
    rami condylar and coronoid processes body and mentum of the mandible
  8. for the erect version of the mandible where is the cr and cr angle and level of tilt of the head
    • Cr is to exit mandibular region of interest 
    • 10 caudal angle 
    • 15 deg tilt of the upwards
  9. for a pa or pa axial position of the mandible what line is perpendicular to the table
  10. where is the CR for a pa mandible 
    if the patient was trauma how would you do this
    • Cr perp to IR and centered to exit at junction of lips 
    • supine
  11. what is the degree of angulation for the optional pa axial mandible 
    where is the cr exiting
    • angle cr 20-25 cephalad 
    • cr exits at the acanthion
  12. for a true pa projection of the body (if it is the are of interest) what would you have to do
    raise chin to bringf AML (acanthiomeatal line ) perpendicular to the IR
  13. what structures are visualized in the pa mandible position
    mandibular rami and lateral poriton of the body
  14. what anatomy is demonstrated in the optional pa axial position of mandible
    TMJ region and heads of the condyles are visible through mastoid processes condyloid processes are seen as well
  15. what is the kv range for the mandible
  16. in the ap townes view of the mandible what line is perp to the table and where is the CR
    • OML perp 
    • CR at level of glabella
  17. what cr angle is used for the townes view of the mandible using the OML and IOML
    • oml 35 deg caudad 
    • 42 deg caudad to ioml
  18. If the area of interest is the TM fossae how much angle is needed to reduce superimposition of TM fossae and mastoid portions of the temporal bone
    40 caudad to OML
  19. what anatomy is demonstrate in an ap townes of the mandible
    condyloid processes of mandible and TM fossae
  20. where is the CR for an SMV of the mandible
    midway btw angles of mandible or at a level 1.5 in to mandibular symphysis
  21. what anatomy is demonstrated in an smv of the mandible
    entire mandible and coronoid and condyloid process
  22. in the modified towne method where is the CR and what else is the same
    • CR 3 in superior to nasion 
    • angles are the same as towne mandible
  23. where is the CR for the axiolateral oblique projection for the TMJ 
    how much CR angle do you need
    • 1.5 in superior to upside EAM 
    • 15 caudad
  24. the face should be tilted ____ deg toward IR in modified law method
  25. in the modified law (axiolateral)which line is perp to the front edge of the IR
  26. In the schuller method of the TMJ where is the CR and angulation
    CR 25-30 caudad to .5in anterior and 2 in superior to upside EAM
  27. TMJ must be done with mouth open and closed 
    t or f
  28. the schueller method is done for what
    to elongate the the condyle compared to the law method
  29. Some departments take the tmj joint with open and closed mouth in what projection
    modified townes
  30. In what projection is mandible viewd as a horseshoe shape
  31. The upper portion of each ramus terminates in ____ shaped notch termed the _____
    • u shaped 
    • mandibular notch
  32. what is the anterior process of the mandibular notch called
    coronoid process
  33. the posterior process of the mandibular notch is termed the
    condyloid process
  34. what is structure located on each half of the mandible
    what are they for
    • mental foramina
    • artery veins and nerves that support the lower lip and chin
  35. what is the center of the mental protuberance called
    mental point
  36. what is flat triangular are below the symphysis marked by two knoblike protuberances that project forward is called
    mental protuberance
  37. the mandible joins together to become one bone at what age
  38. what is the ridge that extends along the entire superior portion of the body of the body
    alveolar process
  39. area superior to angle and anterior to angle is termed
    • superior = ramus 
    • anterior = body
  40. how is the tmj joint formed
    condyloid process fits into the tm fossa of the temporal bone to for tmj
  41. what structure dives one half of the mandible into the body and ramus
    angle of mandible
  42. TMJ has what type of movements
    hinge and gliding
  43. the process of the mandible that forms the tmj joint is the
    condyloid process
  44. each tmj joint is located slightly ___ & ___ to the EAM
    superior and anterior
  45. which projection of the mandible best demonstrates the condyloid process is the
    townes ap axial