Mechanisms of Deglutiton and Phonation: The Larynx Flashcards Preview

Structure and Function Test 1 > Mechanisms of Deglutiton and Phonation: The Larynx > Flashcards

Flashcards in Mechanisms of Deglutiton and Phonation: The Larynx Deck (37)
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1
Q

Acts as a compound sphincter to prevent the passage of food or drink into the airway during swallowing

A

Larynx

2
Q

Acts to close the rima glottis during Valsalva’s maneuver in which air pressure is built up during coughing, sneezing, micturition, defecation, or parturition

A

Larynx

3
Q

Also regulates the flow of air to and from the lungs for breathing and vocalization

A

Larynx

4
Q

The larynx is composed of cartilages connected via

A

Joints and ligaments

5
Q

There are 4 major cartilages of the larynx. What are they?

A

The unpaired thyroid, cricoid, and epiglottic cartilage, and the paired arytenoid cartilages

6
Q

Composed of two lamina that unite anteriorly to form the laryngeal prominance

A

Thyroid cartilage

7
Q

The thyroid cartilage is connected superiorly to the hyoid bone by the thyrohyoid membrane and inferiorly to the cricoid cartilage by

A

Synovial joints and cricothyroid membrane

8
Q

Attached to the thyroid cartilage internally where the lamina unite

A

Epiglottis

9
Q

Articulates with the thyroid cartilage and arytenoid cartilages via synovial joints

A

Cricoid cartilage

10
Q

Sit atop the cricoid cartilages posteriorly

A

Arytenoid cartilages

11
Q

The arytenopid cartilages are pyrimidal in shape with which three processes?

A

Superiorly: an apex
Anteriorly: a vocal process
Laterally: a muscular process

12
Q

Additional cartilages attach to the

A

Apex

13
Q

The vocal ligament attaches to the

A

Vocal process

14
Q

Muscles attach to the

A

Muscular process

15
Q

Attatches inferiorly to the superior border of the cricoid cartilage

A

Cricothyroid ligament (Conus elasticus)

16
Q

The superior free edges of the cricothyroid ligament (conus elasticus) forms the

A

Vocal ligament

17
Q

Attaches posteriorly to the vocal process of the arytenoid cartilages and anteriorly where the lamina of the thyroid cartilage uite

A

Vocal ligament

18
Q

The larynx can be divided from superior to inferior into which three compartments?

A
  1. ) Vestibule
  2. ) Ventricle
  3. ) Infraglottic cavity
19
Q

Extends from the aditis superiorly to the vestibular folds inferiorly

A

Vestibule

20
Q

The lateral wall of the vestibule are formed by the

A

Quadrangular membrane

21
Q

Connective tissue that stretches from the epiglottis to the arytenoid cartilages

A

Quadrangular membrane

22
Q

The free inferior edge of the quadrangular membrane

A

Vestibular ligament

23
Q

The quadrangularmembrane is covered on both sides by a

A

Mucous membrane

24
Q

Where the vestibular ligament is covered bymucosa

A

Vestibular fold (false vocal fold)

25
Q

Lateral expansions of the laryngeal cavity between the vestibular and vocal folds

A

Ventricles

26
Q

Toward the anterior end of the ventricle there is a blind sac called the

A

Saccule

27
Q

Can become enlarged due to increase in intraorthotic pressure

A

Saccule

28
Q

Extends from the vocal folds to the lower border of the cricoid cartilage

A

Infraglottic cavity

29
Q

The larynx is innervated ENTIRELY by branches of the

A

Vagus nerve

30
Q

What are the three vagus nerve branches relevant to the larynx?

A

Internal laryngeal, external laryngeal, and recurrent laryngeal/inferior laryngeal

31
Q

What type of fibers are in the internal laryngeal nerve?

A

Sensory

32
Q

What type of fibers are in the external laryngeal nerve?

A

Motor

33
Q

What type of fibers are in the recurrent laryngeal/inferior laryngeal nerve?

A

Sensory and motor

34
Q

The internal laryngeal nerve innervates the

A

Mucosa above the vocal fold

35
Q

The external laryngeal nerve innervates the

A

Cricothyroid muscle

36
Q

The SENSORY fibers of the recurrent laryngeal/Inferior laryngeal nerve innervates the

A

Mucosa below vocal fold

37
Q

The MOTOR fibers of the recurrent laryngeal nerve innervate the

A

Remaining intrinsic muscles

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