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Head and Neck 2 > Larynx, Shortened > Flashcards

Larynx, Shortened Flashcards

1
Q

3 Unpaired Cartilages

A

Thyroid

Circoid

Epiglottic

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2
Q

Thyroid Cartilage

Type

Location

Connects via

A

Hyaline cartilage

C4-C6

Connects to hyoid via thyrohyoid membrane

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3
Q

Circoid

Type

Location

A

Hyaline cartilage

Most inferior cartilage

Lies at C6

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4
Q

Epiglottic Cartilage

Type

A

Elastic cartilage

At root of tongue

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5
Q

3 Paired Cartilages

A

Arytenoid

Corniculate

Cuneiform

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6
Q

True vocal cord

AKA

Location in relation to false

A

AKA Vocal fold

Inferior to false vocal cord

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7
Q

False vocal cord

AKA

A

Vestibular fold

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8
Q

Rima Vestibuli

what is it

Btw

A

Triangular opening

Between vestibular folds

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9
Q

Rima glottidis

What is it

btw

A

Narrower triangular opening

Between vocal folds

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10
Q

What opens and closes rima

A

Movement of arytenoid cartilage

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11
Q

Intrinsic muscle of larynx priary function

A

Regulate tension on vocal cords

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12
Q

Extrinsic muscles of larynx (3) and action

A
  • Raise larynx
    • Suprahyoid muscles
    • Stylopharyngeous
  • Depress larynx
    • Infrahyoid muscles
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13
Q

Circothyroid Muscle

Intrinsic Muscle

Action Innervation

A

Increases tension on vocal ligaments

Only laryngeal muscle innervated by external branch of superior laryngeal n. CN X

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14
Q

5 intrinsic muscles innervated by___

A
  • Recurrent laryngeal nerve innervates
    • Posterior circoarytenoid
    • Lateral circoarytenoid
    • Tranverse arytenoid
    • Oblique arytenoid
    • Vocalis
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15
Q

Which muscles close (aka) rima_____

A
  • Adducts the rima glottidis
    • Lateral circoarytenoid
    • Tranverse circoarytenoid
    • Oblique arytenoid
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16
Q

Vocalis muscle action

A

Adjusts tension of vocal ligaments

CN 10, recurrent laryngeal

17
Q

Which muscles (2) help close _____ opening

A
  • Help close laryngopharyngeal opening
    • Aryepiglotticus
    • Thyroepiglotticus
  • Innervated Recurrent laryngeal of CN 10
18
Q

Thyroarytenoid muscle action

A

Decreases tension on vocal ligaments

19
Q

Arterial supply of larynx

travel with

A
  • Superior laryngeal artery
    • Passes through thyrohyoid membrane with internal branch of superior laryngeal nerve and vein
  • Inferior laryngeal vein
    • Travels with recurrent laryngeal nerve and inferior laryngeal vein
20
Q

Posterior circoarytenoid action

A

Opens (abducts) rima glottidis

Maintain airway

Head and Neck 2 (15 decks)

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