Muscles of the Larynx

Question 1

List the muscles of abduction

Answer 1

There is only one: The posterior cricoarytenoid

Question 2

List the muscles of adduction

Answer 2

• Lateral cricoarytenoid
• Transverse arytenoid
• Oblique arytenoid

Question 3

List the tensor muscles of the larynx

Answer 3

• Thyroarytenoid
• Cricoarytenoid

Question 4

List relaxer muscles

Answer 4

• Thyroarytenoid
• Cricoarytenoid

Question 5

Describe the quadrouple protection of the larynx

Answer 5

1. Epiglottis folds posteriorly to prevent material from entering the laryngeal vestibule
2. The aryepiglottic folds close together tightly
3. The false vocal folds close together tightly
4. The true vocal folds close together tightly

Question 6

List the infrahyoid muscles

Answer 6

• Sternohyoid
• Omohyoid
• Thyrohyoid
• Sternothyroid

Question 7

What is the function of the suprahyoid muscles and list them

Answer 7

Muscles of elevation

• Digastricus
• Mylohyoid
• Geniohyoid
• Stylohyoid

Question 8

List the bones and the cartilages of the larynx

Answer 8

• Hyoid bone
• Epiglottis
• Thyroid
• Cricoid
• Arytenoid
• Cuneiform
• Corniculate