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Structure And Function 2-3 > Larynx > Flashcards

Larynx Flashcards

1
Q

Functions of the larynx

A
  1. Sound generation

2. Closes off the respiratory system and allow an increase in abdominal pressure

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2
Q

What is the laryngeal prominence

A

The adams apple

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3
Q

What structures make a synovial hinge joint in the larynx

A

The inferior horns of the thyroid cartillage and the cricoid cartilage

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4
Q

Where is the cricoid cartillage located

A

Below the thyroid cartilage and on top of the trachea

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5
Q

Posteriorly, what is the arytenoid cartilage and where is it located

A

Pyramid shaped cartilages above lamin a and articulate with cricoid and permit swiveling and sliding

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6
Q

Poseteriorly what is the corniculate and where is it located

A

Nodules above the artenoids in aryeppigllottic folds

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7
Q

Posteriorly what is the cuneiform cartillage and where is it located

A

Rod shaped above the corniculate carillage

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8
Q

What is the epiglottis and where is it connected

A

Is is a leaf shaped cartillage posterior to the root of the tongue, and is is connected to the body of the hyoid and the posterior side of the thyroid cartillage

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9
Q

Thyrohyoid membrane

A

Links the larynx to the hyoid

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10
Q

Median thyrohyoid ligament

A

Thickened midline part

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11
Q

Cricothyroid membrane

A

Links the thyroid to the cricoid

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12
Q

Median cricothyroid ligament

A

Thickened midline part

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13
Q

Cricotracheal ligament

A

Links the cricoid to the first tracheal cartilage

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14
Q

Quadrangular ligament

A

Links the arytenoid to the epiglottis

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15
Q

What is the lower edge of the quadrangular membrane called

A

The vestibular ligament and is deep to the false vocal folds

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16
Q

What is the thyroepiglottic ligament

A

It links the epiglottis to the thyroid cartillage

17
Q

Where are the vocal ligaments located

A

Upper free edge of the conus

18
Q

What are the conus elasticus

A

Vibrating lips that arise from entire upper edge of arch to cricoid. Attach anterior to the thyroid and posterior to the arytenoid.

19
Q

What is the function of the conus elasticus

A

Sound production (vibrate like lips of a trumpet player

Close rima glottidis-stops the outflow of air and apward movement of the diaphragm

20
Q

What do the intrinsic muscles of the ligament do

A

Change pitch by changing tension as open/close the rima glottidis

21
Q

Cricothyroid

A

Tenses the vocal ligament increasing the pitch

22
Q

Thyroarytenoid muscle

A

Adjacent to the vocal ligament and

Relaxes vocal ligaments to decrease pitch

23
Q

Rotating the arytenoid laterally does what and what muscle is responsible for this

A

Opens the rima gottidis

Posterior cricoarytenoid

24
Q

Rotating the arytenoid medially does what and what muscle is responsible for this

A

It closes the rima glottidis and the lateral cricoarytenoids are responsible for this

25
Q

What muscles are responsible for sliding closed the arytenoid

A

Arytenoideus muscles

26
Q

Aryepiglotic muscle

A

Pulls epiglottis down during swallowing, covers inlet to larynx, not necessary in adult humans

27
Q

What is the vestibule

A

Inlet above the false vocally folds

28
Q

Vestibular folds

A

Overlie the vestibular ligaments

29
Q

Ventricle

A

Area between he true and false vocal folds; and is a lateral extension of the laryngeal sinus

30
Q

Vocal folds

A

Overlie vocal ligaments

31
Q

What structure does the superior laryngeal nerve pierce

A

The thyrohyoid membrane

32
Q

What is an identifying structure for het right recurrent laryngeal nerve

A

It passes under the subclavian artery

33
Q

What is an identifying structure for the left recurrent laryngeal nerve

A

It passes inter the arch of the aorta

34
Q

What does the superior laryngeal nerve divide into and what do the branches supply

A
  1. Internal laryngeal nerve=visceral sensory ABOVE the true vocal folds
  2. External laryngeal nerve=branchiomotor to the cricothyroid
35
Q

What does the recurrent laryngeal nerve supply

A
  1. Visceral sensory to the larynx below the true vocal folds

2. Branchiomotor to all other muscles of the larynx

36
Q

What is the arterial supply to the larynx

A

Superior laryngeal artery from the superior thyroid

Inferior laryngeal artery from the inferior thyroid artery

37
Q

What are the lymph structures associated with the larynx above the true vocal folds

A

The superior deep cervical nodes

38
Q

What are the lymph structures associated with the larynx below the true vocal folds

A

Inferior deep cervical nodes

39
Q

What is the structure that swells and can suffocate during anaphylactic shock

A

The vestibular folds

Structure And Function 2-3 (14 decks)

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