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  1. #11
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    Default ent mcq answers

    50. The larynx develops during embryonic growth from the

    A. Ectoderm
    B. Foregut
    C. Neural crest
    D. Hindgut
    E. Stomadeum

    Answer: B

    Explanation: the Laryngeal mucosa develops from the endoderm of the cephalic part of foregut. Laryngeal cartilages and muscles develop from the mesenchyme.

    Reference: Pg. 262 of Bookiseases of Ear Nose and Throat by PL Dhigra,4th edition.

    47. Laryngeal epithelium is stratified squamous

    A. On the vocal folds
    B. On the vocal and false folds,
    C. On the vocal folds, false folds, and arytenoid

    D. On the vocal folds, false folds, arytenoid, and epiglottis
    E. In the ventricle

    Answer:A

    Explanation: the epithelium of the mucous membrane is ciliated columnar type except over the vocal cords and upper part of the vestibule where it is stratified columnar type.

    Reference: Pg.261 of Bookiseases of Ear Nose and Throat by PL Dhigra,4th edition.

  2. #12
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    53. Phonation requires

    A. Breath support
    B. Vocal folds approximation
    C. Favorable vibration
    D. Control of length and tension
    E. All of the above

    Answer: E

    Reference: Pg.289 of Bookiseases of Ear Nose and Throat by PL Dhigra,4th edition.

    60. What are the embryologic origins of the laryngeal cartilages?

    A. First branchial arch
    B. Second bronchial arch
    C. Third bronchial arch
    D. Fourth, fifth, and sixth bronchial arches.
    E. A&B

    Answer: D

    Reference: Pg. 262 of Bookiseases of Ear Nose and Throat by PL Dhigra,4th edition.

  3. #13
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    62. Korner's septum in the mastoid is a remnant of which of the following

    A. Tympanosquamous suture
    B. Petrotympanic septum
    C. Tympanomastoid fissure
    D. Petrosquamous suture
    E. Hyrtl's fissure

    Answer: D

  4. #14
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    thaaaaaaaaaaaaaaank u veeeeeeeeeeery much

  5. #15
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    thanks a lot

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