CMT CMT Breathing & Airway Disorders

Question 1

What type of breathing pattern is considered dysfunctional and a primary focus of myofunctional therapy?

Accepted Answer

Mouth breathing

Answer

Mouth breathing is a dysfunctional pattern that bypasses nasal filtration, humidification, and nitric oxide production, and is a core target of myofunctional therapy.

Question 2

Which nasal function is lost when a patient habitually mouth breathes?

Accepted Answer

Nitric oxide production

Answer

The nasal passages produce nitric oxide, a vasodilator that improves oxygen uptake in the lungs, which is bypassed during chronic mouth breathing.

Question 3

Upper airway resistance syndrome (UARS) is most closely associated with which myofunctional dysfunction?

Accepted Answer

Low tongue posture

Answer

Low or improper tongue posture reduces oral airway support and contributes to upper airway collapse, which is characteristic of UARS.

Question 4

A myofunctional therapist notices a patient has chronic nasal congestion that prevents nasal breathing. What is the FIRST recommended action?

Accepted Answer

Refer to an ENT or allergist

Answer

Structural or medical causes of nasal obstruction must be addressed by an ENT or allergist before nasal breathing training can succeed.

Question 5

Which condition is directly worsened by low tongue posture and weak oropharyngeal muscles?

Accepted Answer

Obstructive sleep apnea

Answer

Obstructive sleep apnea is exacerbated by weak oropharyngeal and tongue muscles that collapse during sleep, reducing airway patency.

(CMT) Certified Myofunctional Therapist Practice Test

(CMT) Certified Myofunctional Therapist Practice Test

CMT CMT Breathing & Airway Disorders