CSD - Communication Sciences and Disorders Exam with Frequently Asked Questions and Verified Answers

CSD - Communication Sciences and Disorders Exam with Frequently Asked Questions and Verified Answers Which speech subsystem is primarily responsible for creating the sound source used in speech production? A. Respiratory system B. Phonatory system C. Resonatory system D. Articulatory system Correct Answer: B. Phonatory system Rationale: The phonatory system, primarily involving the vocal folds within the larynx, generates the voiced sound source that is later shaped by the articulatory and resonatory systems. The respiratory system provides airflow but does not create voicing. A child consistently substitutes /w/ for /r/ in words such as "rabbit" → "wabbit." This pattern is best described as: A. Stopping B. Fronting C. Gliding D. Final consonant deletion Correct Answer: C. Gliding Rationale: Gliding occurs when liquids (/r/, /l/) are replaced by glides (/w/, /j/). It is a common developmental phonological process but is considered atypical if it persists beyond the expected developmental age. Which structure is the primary active articulator during production of the alveolar sounds /t/, /d/, and /n/? A. Soft palate B. Lower lip C. Tongue tip or blade D. Vocal folds Correct Answer: C. Tongue tip or blade Rationale: Alveolar consonants are produced when the tongue tip or blade contacts or approaches the alveolar ridge. The soft palate controls nasality, while the vocal folds control voicing.