CCC CCC ASHA Anatomy & Physiology of Communication

Question 1

Which muscle is the primary muscle of inspiration during quiet breathing?

Accepted Answer

Diaphragm

Answer

External intercostals

Answer

Sternocleidomastoid

Answer

Scalenes

Question 2

The vocal folds are housed within which structure of the larynx?

Accepted Answer

Thyroid cartilage

Answer

Epiglottis

Answer

Cricoid cartilage

Answer

Arytenoid cartilages

Question 3

According to the myoelastic-aerodynamic theory of phonation, what initiates vocal fold opening?

Accepted Answer

Subglottal air pressure overcoming medial compression

Answer

Active muscle contraction pulling folds apart

Answer

Supraglottal negative pressure

Answer

Lateral cricoarytenoid muscle activation

Question 4

Which cranial nerve provides primary motor innervation to the intrinsic muscles of the larynx?

Accepted Answer

CN X (Vagus) via the recurrent laryngeal branch

Answer

CN IX (Glossopharyngeal)

Answer

CN VII (Facial)

Answer

CN XII (Hypoglossal)

Question 5

The velopharyngeal mechanism primarily functions to separate which two cavities during speech?

Accepted Answer

Oral and nasal cavities

Answer

Nasal and pharyngeal cavities

Answer

Oral and pharyngeal cavities

Answer

Laryngeal and pharyngeal cavities

Question 6

The hyoid bone is unique because it is the only bone in the body that does not articulate with another bone. Which structure does NOT attach directly to the hyoid?

Accepted Answer

Epiglottis directly via its cartilage

Answer

Tongue muscles

Answer

Laryngeal cartilages via extrinsic muscles

Answer

Pharyngeal constrictors

Question 7

Which subdivision of the pharynx lies posterior to the nasal cavity and superior to the soft palate?

Accepted Answer

Nasopharynx

Answer

Oropharynx

Answer

Laryngopharynx

Answer

Hypopharynx