Head and Neck: Speaking and Swallowing

Question 1

What is responsible for Sound production

Answer 1

Vibration of the vocal cords by changing their tension (intrinsic muscles of the larynx)

Question 2

Appearance of the larynx during phonation

Answer 2

Arytenoid and vocal folds are adducted
Rima Glottidis is closed and air is forced through

Changes in tension change the nature of the sound produced.

Question 3

Which nerve innervates the larynx

Answer 3

Sensory and motor branches of the Vagus (CNX)

Question 4

Which branch supplies the intrinsic muscles of the larynx

Answer 4

Recurrent Laryngeal Nerve

Question 5

Which branch supplies the Cricothyroid muscle?

Answer 5

External Laryngeal Nerve

Branch of the Superior Laryngeal nerve

Question 6

Which branch supplies the Epiglottis, Epiglottic glands, Mucous membrane of the larynx, and base of the tongue?

Answer 6

Internal Laryngeal Nerve

Branch of the Superior Laryngeal nerve

Question 7

Three stages of Swallowing?

Answer 7

Oral Preparatory (mastication)

Oral (voluntary elevation of the tongue)

Pharyngeal (bolus enters laryngopharynx, epiglottis closes and soft palate elevates)

Oesophageal

Question 8

Innervation of the muscles of the Pharynx

Answer 8

Pharyngeal Plexus

Pharyngeal branches of the Glossopharyngeal and Vagus; Autonomic fibres