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
Q

A muscle attached to muscular procees and posterior side of cricoid csrtilage

A

Posterior cricoarytenoid

26
Q

Muscle for breathing which abducts vocal folds

A

Posterior cricoarytenoids

27
Q

Action of lateral cricoarytenoids

A

Abducts vocal folds

Closing the rima glottidis

28
Q

Creates slide movement of arytenoid muscles. Sliding towards the middle

Adduct arytenoid cartilages

A

Inter arytenoids

29
Q

Strobe lights used in laryngoscopy is called what

A

Stroboscopy

30
Q

Which recurrent laryngeal nerve passes around the arch of the aorta

A

Left recurrent laryngeal nerve

31
Q

If you were to fix a patent ductus arteriosus, what nerve will most likely be affected

A

Left recurrent laryngeal nerve

32
Q

What innervates the cricothyroid

A

External branch of the superior laryngeal nerve

33
Q

What produces high pitch sound

A

Cricothyroid muscle

34
Q

Sensory nerve to laryngopharynx

A

Internal branch of superior laryngeal nerve

35
Q

External branch innervates what (only 1 muscle)

A

Cricothyroid muscle

36
Q

Functions of larynx

A

Maintain stable patent airway
Protect airway from aspiration
Phonation