FINAL- Anatomy of Phonation

Question 1

Intrinsic Muscles of Adduction

(3)

Answer 1

• Lateral Cricoarytenoid
• Transverse Interarytenoid
• Oblique Interarytenoid

Question 2

Intrinsic Muscles of Abduction

(1)

Answer 2

Posterior Cricoarytenoid

Question 3

Intrinsic Muscles of Tensor

3

Answer 3

Cricothyroid- Pars Recta

Cricothyroid- Pars Oblique

Thyrovocalis

Question 4

Extrinsic Suprahyoid Muscles

Answer 4

• Digastric
• Stylohyoid
• Mylohyoid
• Geniohyoid
• Hyoglossus
• Genioglossus
• Inferior Pharyngeal Constrictor

Question 5

Extrinsic Infrahyoid Muscles

Answer 5

• Omohyoid
• Sternohyoid
• Sternothyroid
• Thyrohyoid

Question 6

Lateral Cricoarytenoid

Answer 6

O: cricoid

I: muscular pr. of arytenoid

F: pulls forward on muscular pr., rocking arytenoid inward and forward

N: X Vagus

Question 7

Interarytenoids

Answer 7

Transverse:

runs across backs of arytenoid for medial compression

Obliqe:

muscular pr. to apex of opposite arytenoids- pulls apex together

Both X Vagus innervation

Question 8

Posterior Cricoarytenoid

Answer 8

O: Cricoid

I: muscular pr. of opposite arytenoid

F: pulls vocal processes apart

N: X Vagus

Question 9

Cricothyroid Muscles

Answer 9

Pars Recta

O: cricoid

I: thyroid lamina

F: lengthen vocal folds

N: X Vagus

Pars Oblique

O: cricoid

I: between thyroid lamina & notch

F: lengthen vocal folds

N: X Vagus

Question 10

Thyrovocalis

Answer 10

O: inferior arch of thyroid

I: vocal processes

F: tense vocal folds

N: X Vagus