ANATOMY FINAL

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rlwesley
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122506
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ANATOMY FINAL
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2011-12-10 16:49:23
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Anatomy Final
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  1. What are the MOBILE articulators?
    Tongue, Jaw, Lips, Velum, Cheeks, Chest wall, Pharyngeal walls, Laryngeal system
  2. What are the IMMOVABLE articulators?
    Alveolar Ridge, Hard Palatte, Teeth
  3. Condyle
    articulates with temporal bone (TMJ)
  4. Maxille
    fuses medially during embryogenesis to form upper jaw, roof of the mouth
  5. Floor of nasal cavity
    Vomer
  6. Forms posterior nasal septum
    vomer
  7. Cheek Bone
    Zygomatic
  8. Nasal turbinates
    Conchae
  9. Bridge of Nose
    Nasal Bones
  10. Forms medial aspect of orbit
    Lachrymal
  11. What happens to VP port during speech
    Reduce cross-sectional diameter of VP port, rapidly. Velar musculature generates most of movement, LPW has medial motion, PPW little motion
  12. VP closure beteen nasals and non-nasals
    VP has greater closure between non-nasal as opposed to nasals
  13. What does muscle arrangement of velum allow?
    • -elevation/depression of velum
    • -constricting of port
    • -tensing/stiffening of velar surface
  14. What is the velar sling
    Levator Veli Palatini
  15. Action of LVP
    elevate and retract velum, upward and backward movemtn of velar tissue
  16. What does the TVP do?
    tense anterior velum by tension placed on the velar tendon. Opens Eustachian tube, equalization ME air pressure
  17. What does the Musculus Uvulae do?
    shortens and thickens nasal surface of velum, increases mass of velum to close VP port (lack of muscle bulk can cause leak of air through nasal cavity-hypernasality)
  18. Anterior Frontal Arch
    Palatoglossus
  19. What does the palatoglossus do?
    Lower velum or decrease distance between l and r faucial arches if tongue is stable. Elevates and retracts tongue if velum is stabalized
  20. Posterior Faucial Arch
    Palatopharyngeus
  21. What does the palatopharyngeus do?
    Narrows oropharynx and lowers the velum
  22. Non speech functions of the tongue
    taste, food movement, transport bolus through oral cavity
  23. Speech functions of the tongue
    Acts as valve to stop airflow, restricts airflow to produce stridents and fricatives,
  24. Apex
    tip of tongue
  25. blade, dorsum and root
    superior surface of the tongue
  26. Frenulum
    flap of tissue beneath apex of tongue, attached to floor of mouth
  27. Paoillae
    taste buds are interspersed throughout pappilae
  28. Sulcus Terminalis
    divides the body of the tongue into anterior body and posterior root
  29. What is a Muscular Hydrostat
    an organ that lacks a skeleton of bone or cartilage
  30. What is isovolumetric structure?
    maintains a constant volume as its muscles contract
  31. Intrinsic muscles of the tongue are responsible for...
    fine muscle movements of the tongue
  32. What acts as the articulatory rate limiter
    intrinsic muscles of the tongue
  33. Extrinsic muscles insertions and origin
    • insertion inside tongue
    • origon outside tongue
  34. Do intrinsic/extrinsic muscles have higher innervation ratio?
    extrinsic
  35. What does the transversus do?
    Narrows and elongates the tongue
  36. What does the Verticalis do?
    flattens the tongue and pulls it down into the floor of the mouth
  37. What does the Superior Longitudinal do?
    elevates, retracts, and deviates the apex
  38. What does the Inferior Longitudinal do?
    pulls tip of tongue downward in retraction and deviates the tongue
  39. What is the bulk of the tongue called?
    Genioglossus
  40. What do anterior fibers of the genioglossus do?
    retract the tongue
  41. what do posterior fibers of the genioglossus do?
    protrude the tongue
  42. what do anterior ANDposterior fibers of the genioglossus do?
    depress the tongue
  43. Styloglossus
    draws the tongue up and back
  44. Hyoglossus
    pulls sides of the tongue down
  45. How do muscles in lower face differ from those in limbs
    lack well defined insertion points, lack tendonous connections, not divided into distinct muscle group,
  46. how are bilabials made
    lip muscles seal, compress along with muscle that make up corners of mouth
  47. How are labials made
    lip rounding
  48. low are labio-dentals made
    lip produces an area of constriction in assosciation with upper incisors
  49. Orbicukaris oris
    close lips, protrudes lips, draws oral angles to midline
  50. raises upper lip and turns it outward
    Levator Labii Superior
  51. Elevates upper lip
    zygomaticus minor
  52. draws angle of mouth upward and out
    zygomaticus major
  53. what is the smiling muscle
    zygomaticus major
  54. Raise angle of the mouth
    Vevator Anguli Oris
  55. Raided and everts lower lip, wrinkles skin of chin, lip compression
    Mentalis
  56. Draws lower lip downward and laterally
    Depressor Labii Inferior
  57. Draws angle of mouth downward and laterally
    Depressor Anguli Oris
  58. Compresses cheeks against teeth, privides wall for oral pressure development
    Buccinator
  59. Retreacts angle of mouth directly posterior
    Risorius
  60. Muscular sheet covering frontal bone that elevates eyebrow and wrinkles forehead
    Frontalis
  61. Elliptical muscle surrounding eyelid, closes eyelid
    Orbicularis Oculi
  62. Draws eyebrow together
    Corrugator
  63. Wrinkle Bridge of nose
    Procerus
  64. Nostril flaring muscle, widens nasal aperture
    Nasalis
  65. Elevate smandible, closes jaw, slow but powerful contraction
    Masseter
  66. Elevates mandible, fast contraction time, shears and tears
    Temporalis
  67. Assists elevation/protrusion of mandible and side-to-side movement of jaw. very active during speech.
    Medial Pterygoid
  68. Assists in opening mouth, rocks mandible against upper maxillary segment during chewing
    Later Pterygoid
  69. Jaw opener/ speech muscle (ABD AND PBD)
    anterior belly digastricus, posterior belly of digastricus
  70. elevates floor of mouth. paired muscle that forms floor of mouth
    Mylohyoid
  71. jaw opener that parallels ABD orientation
    Geniohyoid

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