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Anatomy > Larynx > Flashcards

Larynx Flashcards

1
Q

Attachments of lower border of thyroid C.

A

Cricothyroid

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2
Q

Attachments of posterior border of thyroid C.

A
  1. Stylopharyngeus
  2. Salpingopharyngeus
  3. Palatopharyngeus
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3
Q

Attachments of oblique line of thyroid C.

A
  1. Sternothyroid
  2. Thyrohyoid
  3. Thyropharyngeus
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4
Q

Attachments of inner aspect of thyroid C.

A
  1. Median thyroepiglottic ligament
  2. Thyroepiglottic M
  3. Vestibular folds
  4. Vocal folds
  5. Thyroarytenoid M
  6. Vocalis
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5
Q

Attachments of epiglottis

A
  1. Aryepiglottic folds
  2. Median glossoepiglottic fold
  3. Hyoepiglottic ligament
  4. Aryepiglottic M
  5. Thyroepiglottic M
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6
Q

Attachments of arytenoid cartilage

A

Vocal process - vocal folds, vocalis
Muscular process - lateral and posterior cricoarytenoid
Posterior surface - transverse arytenoid, oblique arytenoid

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7
Q

Cricothyroid action

A
  • tuning fork of larynx

- tensor of vocal cords

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8
Q

Posterior cricoarytenoid action

A

Abductor of vocal cords

Safety muscle

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9
Q

Lateral cricoarytenoid action

A

Adductor of vocal cords

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10
Q

Transverse arytenoid

A

Adductor of vocal cords

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11
Q

Oblique arytenoids

A

Adductor of vocal cords

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12
Q

Aryepiglottic

A

Closing inlet of larynx

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13
Q

Thyroarytenoid action

A

Relaxing vocal cords

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14
Q

Thyroepiglottic action

A

Opening inlet of larynx

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15
Q

Vocalis

A

Relaxing vocal cords

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16
Q

Elevation of larynx

A

Thyrohyoid

Mylohyoid

17
Q

Depression of larynx

A

Sternothyroid

Sternohyoid

18
Q

Adductors of vocal cords

A

Lateral cricoarytenoid

Transverse and oblique arytenoids

19
Q

Relaxors of vocal cords

A

Vocalis

Thyroarytenoid

20
Q

Motor nerve supply of intrinsic muscles of larynx

A

Cricothyroid - external laryngeal nerve

All others - recurrent laryngeal nerve

21
Q

Blood supply upto vocal folds

A
  • superior laryngeal branch of superior thyroid artery

- superior laryngeal vein drains into superior thyroid vein

22
Q

Blood supply below vocal folds

A
  • Inferior laryngeal branch of inferior thyroid artery

- inferior laryngeal vein drains into inferior thyroid vein

23
Q

Sensory nerve supply

A

Internal laryngeal - mucous membrane upto vocal folds

Recurrent laryngeal - below vocal folds

24
Q

Lymphatic drainage

A

Above vocal folds - superior thyroid vessels

Below vocal folds - deep cervical

25
Q

Rima glottitis during quiet breathing

A

Pentagonal

26
Q

RG during speech/phonation

A

Reduced to chink

27
Q

RG during forced inspiration

A

diamond shaped

28
Q

RG during whispering

A

Funnel shaped

Anatomy (23 decks)

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