Larynx Flashcards

1
Q

only bone not connected to any bone in the body

A

Hyoid bone

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2
Q

Hyoid bone is connected to thyroid cartilage via what membrane

A

Thyrohyoid membrane

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3
Q

Only cartilage that js a complete ring in the entire respi tract

A

Cricoid cartilage

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4
Q

What cartilage comes before the trachea

A

Cricoid cartilage

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5
Q

Joining together of cricoid and trachea is at what level

A

C6

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6
Q

Start of esophagus what level

A

C6

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7
Q

Unpaired cartilages lf laryngeal skeleton

A

Epiglottic cartilage
Thyroid cartilage
Cricoid cartilage

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8
Q

Paired cartilages

A

Arytenoid cartilage
Corniculate cartilage
Cuneiform cartilage

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9
Q

Attached to the inner side kf the thyroid cartilage

A

Epiglottic cartilage

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10
Q

Diff bet ligament and membrane

A

Membrane is flat

Ligament is a thickened structure

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11
Q

Attachment of the arytenoid to the thyroid

A

Vocal ligament

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12
Q

Involved in voice production

A

Vocal ligament

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13
Q

Attaches the arytenoid to the epiglottis

A

Quadrangular membrane

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14
Q

How many quadrangular membranes and why

A

2 bec 2 arytenoid cartilages

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15
Q

What ligament parallels the vocal ligament but located more superiorly to it

A

Vestibular ligament

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16
Q

Also called false vocal ligament

A

Vestibular ligament

17
Q

Another name for cricovocal ligament

A

Conus elasticus

18
Q

Opening between two vocal ligaments

A

Rima glottidis

19
Q

3 parts of the arytenoid cartilage

A

Vocal process
Muscular process
Apex

20
Q

What part moves laterally in the arytenoid cartilage

A

Muscular process

21
Q

Many muscles are attached to what process of the arytenoid cartilage

A

Muscular process

22
Q

All intrinsic muscles of the larynx are innervated by what except what

A

Recurrent laryngeal nerve except cricothyroid (innervated by external laryngeal nerve from vagus nerve)

23
Q

Produces high pitch sounds

A

External laryngeal nerve acting on cricothyroid

24
Q

What happens to vocal ligament when thyroarytenoid and vocalis muscle contracts

A

Relaxes the vocal ligament

25
A muscle attached to muscular procees and posterior side of cricoid csrtilage
Posterior cricoarytenoid
26
Muscle for breathing which abducts vocal folds
Posterior cricoarytenoids
27
Action of lateral cricoarytenoids
Abducts vocal folds | Closing the rima glottidis
28
Creates slide movement of arytenoid muscles. Sliding towards the middle Adduct arytenoid cartilages
Inter arytenoids
29
Strobe lights used in laryngoscopy is called what
Stroboscopy
30
Which recurrent laryngeal nerve passes around the arch of the aorta
Left recurrent laryngeal nerve
31
If you were to fix a patent ductus arteriosus, what nerve will most likely be affected
Left recurrent laryngeal nerve
32
What innervates the cricothyroid
External branch of the superior laryngeal nerve
33
What produces high pitch sound
Cricothyroid muscle
34
Sensory nerve to laryngopharynx
Internal branch of superior laryngeal nerve
35
External branch innervates what (only 1 muscle)
Cricothyroid muscle
36
Functions of larynx
Maintain stable patent airway Protect airway from aspiration Phonation