Airway and Ventilation

What are the three paired cartilages in the larynx?

• Epiglottis

• Cuneiform

• Corniculate

• Arytenoid

• Thryoid

What is the only cartilage in the upper airway that forms a complete cartilaginous ring?

• Tracheal rings

• Thyroid

• Cricoid

• Epiglottis

What is the only muscle that abducts the vocal cords?

• Cricothyroid muscle

• Posterior Cricoarytenoids

• Lateral cricoarytenoids

• Thyroarytenoid

What is the only intrinsic muscle supplied by the external branch of the superior laryngeal nerve?

• Cricothyroid muscle

• Anterior Cricoarytenoid

• Posterior Cricoarytenoids

• Lateral Cricoarytenoids

What innervates all of the intrinsic laryngeal muscles except the cricothyroid muscle?

• Glossopharyngeal

• Internal Superior Laryngeal Nerve

• External Superior Laryngeal Nerve

• Recurrent Laryngeal Nerve

The lateral cricoarytenoids are responsible for __ the vocal cords.

• Abducting

• Tensing

• Lengthening

• Adducting

The airway is innervated by all of these cranial nerves, EXCEPT?

• Vestibulocochlear

• Glossopharyngeal

• Vagus

• Trigeminal

The glossopharyngeal nerve is responsible for sensory innervation to what?

• Anterior 2/3 of tongue

• Sensory above cords

• Sensory below cords

• Posterior 1/3 of tongue

What branch of the trigeminal nerve is responsible for sensory innervation of the anterior 2/3 of the tongue?

• V1

• V2

• V3

• Trigeminal nerve does not innervate the tongue

The superior laryngeal nerve has an internal and external branch. The internal branch innervates the __, and the external branch innervates the __.

• Sensory above cords; cricothyroid muscle

• Cricothyroid muscle; sensory above cords

• Sensory below cords; motor to all laryngeal muscles

• motor to all laryngeal muscles; sensory below cords