Topic 6 Quiz Questions

Question 1

The Bernoulli principle explains that sound produced by the vocal folds can be shaped into phonemes by altering the shape of the vocal tract.

True/false?

Answer 1

False.

Phonation relies on the Bernoulli principle and tissue elasticity to sustain the vibration of the vocal folds. The Bernoulli principle was originally written about fluid movement, but the same principle applies to air flow. Simply put, this principle says that fluid (or air) flowing through a tube at a constant rate will increase its speed if it has to pass around a constriction.

Question 2

What are the mobile articulators?

*there are 7

Answer 2

• Soft palate/velum
• Tongue
• Pharynx
• Mandible
• Larynx
• Lips
• Cheeks

Question 3

What are the immobile articulators?

Answer 3

• Teeth
• Hard palate

Question 4

In _________ attack, vocal fold adduction occurs before the onset of exhalation.

Answer 4

In glottal attack, vocal fold adduction occurs before the onset of exhalation.

Question 5

Why is medial compression during phonation important?

Answer 5

Medial compression reduces energy requirement of adductors in sustained phonation.

Medial compression of the vocal folds allows pressure below them (subglottal pressure) to increase.

Question 6

When producing a very soft sound, it is best to inhale (and exhale) the smallest volume of air possible. True of False?

Answer 6

True.

Question 7

Damage to the pharyngeal plexus is likely to most affect what phase of swallowing?

• • oral preparatory phase*
• • oral phase*
• • pharyngeal phase*
• • oesophageal phase*

Answer 7

Pharyngeal phase

Question 8

Which of the following phases of deglutition are likely to be affected by damage to the hypoglossal nerve?

• late pharyngeal phase
• early part of pharyngeal phase
• oral phase oral
• preparatory phase

Answer 8

Damage to the hypoglossal nerve is most likely to affect early part of pharyngeal phase, oral phase and the oral preparatory phase.

Question 9

Which vocal register is most likely to utilise the cricothyroid muscle?

• glottal fry
• falsetto
• modal

Answer 9

Falsetto utilises the cricothyroid muscle.

* Remember, the cricothyroid is the only tensor muscle of the larynx. It rocks/tilts the thyroid forward.

Question 10

What term specifically refers to the pattern of vibration the vocal folds undergo in a single cycle?

Answer 10

Vocal register is the mode of vibration the vocal folds undergo in a cycle of vibration. A register refers to the differences in the mode of the vibration.

Three commonly referred to register are:

• modal
• glottal fry
• falsetto.