Voice Production: Anatomy & Physiology

Podcast

Play an AI-generated podcast conversation about this lesson

Download our mobile app to listen on the go

Get App

Questions and Answers

What role does the cricothyroid joint play in voice production?

Anchors the epiglottis, controlling its movement during swallowing, but not phonation.
Contributes directly to vocal fold structure without influencing voice modulation.
Facilitates the rotating movement that brings the vocal folds toward and away from each other.
Tilts the cricoid upwards allowing the thyroid to move forward and back, increasing pitch. (correct)

Which layer of the true vocal folds is primarily composed of densely packed elastic and collagen fibers?

Squamous epithelium
Deep layer of lamina propria
Immediate layer of lamina propria (correct)
Superficial layer of lamina propria

According to the Cover-Body Model, what best describes the characteristics of the 'cover' layer of the vocal folds?

Soft, flexible, most compliant, and least stiff. (correct)
Composed of the thyroarytenoid muscle which controls the shape of the vocal folds.
Stiffer than other layers, with medium compliance.
Stiff and controls the overall shape of the vocal folds.

How does the Bernoulli principle affect vocal fold vibration?

It explains how increased airflow velocity through a narrow glottis creates a suction effect, pulling the vocal folds toward the midline. (B) Signup and view all the answers

What is the primary function of the Lateral Cricoarytenoid muscle?

Adduct vocal folds (D) Signup and view all the answers

What is the role of the false vocal folds (ventricular folds) during normal voice production?

They close during swallowing but should not close during voice production. (D) Signup and view all the answers

Which of the following best describes the mucosal wave in vocal fold vibration?

Wave-like motion evident in the loose and pliable cover of the vocal fold. (B) Signup and view all the answers

What is the clinical significance of measuring Phonation Threshold Pressure (PTP)?

It indicates the effort required to initiate and sustain vocal fold vibration, which can help diagnose voice disorders. (B) Signup and view all the answers

What vocal change is typically observed in males due to vocal fold atrophy associated with aging (Presbylaryngis)?

Slight increase in fundamental frequency (F0). (D) Signup and view all the answers

What is assessed by perturbation measures like jitter and shimmer in voice analysis?

The stability and consistency of vocal fold vibration (A) Signup and view all the answers

Which vocal register is most commonly used in conversational speech, involving full participation of the cover and body of the vocal folds?

Modal register (B) Signup and view all the answers

What does Electroglottography (EGG) primarily measure in the assessment of vocal function?

Vocal fold contact during phonation (C) Signup and view all the answers

A patient presents with a hoarse voice and irregular vocal fold vibration. Which laryngeal visualization method would best allow for assessment of vocal fold function?

Videostroboscopy (B) Signup and view all the answers

What is the primary function of the velopharyngeal valve?

Directs airflow through the oral or nasal cavities. (D) Signup and view all the answers

What is coarticulation, and how does it affect speech?

The influence of individual speech sound segments on each other, modifying acoustic characteristics of adjacent sounds. (C) Signup and view all the answers

Flashcards

Hyoid Bone

U-shaped bone in the neck that attaches to the larynx.

Thyroid Cartilage

Largest cartilage in the larynx.