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Larynx

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Larynx

PrepBank · পাতা / · /

.
Which is the 'safety muscle' of the larynx?
  1. Cricothyroid
  2. Posterior cricoarytenoid
  3. Lateral cricoarytenoid
  4. Oblique arytenoid
ব্যাখ্যা

.
Which one is site of phonation?
  1. ক) Trachea
  2. খ) Larynx
  3. গ) Nasopharynx
  4. ঘ) Oropharynx
.
Which of these is composed of hyaline cartilage?
  1. Epiglottis
  2. Arytenoid cartilage
  3. Cuneiform cartilage
  4. Corniculate cartilage
.
Which is the narrowest part of the larynx?
  1. Rima glottidis
  2. Sinus of larynx
  3. Rima vestibuli
  4. Infraglottic part
ব্যাখ্যা
Rima glottidis: The space between two vocal folds is called 'rima glottidis'. It is the narrowest part of the larynx.
Rima vestibuli: The spce between two vestibular folds (false vocal cords) is called rima vestibuli.
Sinus/vestibule of larynx: It is the space between the vocal fold and vestibular folds. 

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Intrinsic muscles of the larynx are mostly supplied by the-
  1. Recurrent laryngeal nerve
  2. External laryngeal nerve
  3. Internal laryngeal nerve
  4. Spinal accessory nerve
.
The vocal cords are abducted by the action of-
  1. Lateral cricoarytenoid
  2. Oblique arytenoid
  3. Cricothyroid
  4. Posterior cricoarytenoid