Unit 4 - Phonation

1

Epiglottis

2

Hyoid Bone

3

Thyrohyoid Membrane

4

Quadrangular Membrane

5

Glottis or Vestibule

6

Ventricular Ligament

7

Thyroid Cartilage

8

Laryngeal Ventricle

9

Vocal Fold

10

Cricoid cartilage

1

Epiglottic Cartilage

3

Cuneiform

4

Quadrangular Membrane

5

Arytenoid Cartilage

6

Thyroid Cartilage

7

Cricoid Cartilage

8

Cricovocal Membrane

9

Laryngeal Ventricle

10

Tracheal Cartilages

1

Epiglottis

2

Hyoid Bone

3

Thyrohyoid Membrane

4

Thyroid Cartilage

5

Cricoid Cartilage

6

Trachea

1

Epiglottis

2

Hyoid Bone

3

Thyrohyoid Membrane

4

Thyroid Cartilage

5

Cricoid Cartilage

6

Trachea

1

Epiglottis

2

Hyoid Bone

7

Arytenoid Cartilage

8

False vocal fold/ventricular fold

Name the 3 paired cartilages

Arytenoids, corniculates, cuneiforms

Name the 3 unpaired cartilages

Epiglottis, cricoid, thyroid

9

True vocal fold/vocal ligament

10

Quadrangular Membrane

1

Thyroid Angle

2

Lateral Thyroidarytenoid

3

Medial Thyroarytenoid

4

Vocal Ligament

5

Thyroid Cartilage

6

Vocal Process

7

Cricoid Cartilage

8

Arytenoid Cartilage

9

Muscular Process

11

Lateral Cricoarytenoid muscle

12

Interarytenoid

4

Vocal Ligament

5

Thyroid Cartilage

6

Vocal Process of Arytenoid

7

Cricoid cartilage

8 and 9

Muscular Process of Arytenoid

A

Glottis

13

Posterior Cricoarytenoid

1

Oblique Interarytenoid

2

Transverse Interarytenoid

3

Posterior Cricoarytenoid

1

Cricothyroid

1a

Pars Recta

1b

Pars Oblique

1

Thyrohyoid

2

Omohyoid

3

Sternohyoid

4

Sternothyroid

1

Digastric

1a

Anterior belly of the digastric

1b

Posterior belly of the digastric

2

Mylohyoid

3

Stylohyoid

4

Geniohyoid

1

Epithelium

2

Superficial layer of the lamina propria

3

Intermediate layer of the lamina propria

4

Deep layer of the lamina propria

6

Thyroarytenoid muscle

What is the purpose of the cuneiform cartilages?

Structure/stability in the aryepiglottic fold

What is the purpose of the epiglottis?

To protect the larynx and lung from foreign objects

What is the category for muscles with all attachments housed within the larynx?

Intrinsic

What muscle is the only abductor?

The Posterior Cricoarytenoid

Which muscles are suprahyoids?

Digastric, mylohyoid, stylohyoid, geniohyoid

What is the purpose of suprahyoids?

Elevate the larynx and hyoid

Which muscles are infrahyoids?

Thyrohyoid, omohyoid, sternohyoid, sternothyroid (TOSS)

What is the function of infrahyoids?

Depress the larynx and hyoid

Which cartilage sits atop the Arytenoid cartilage like a snow capped mountain?

Corniculates

What concept states that pressure and velocity are inversely related?

Bernoulli’s effect

In the body-cover model, which layers of the vocal folds are included in the body and which layers are included in the cover?

Cover: epithelium, superficial LP, intermediate LP

Body: deep LP, TA

In the three-part model, which layers of the vocal folds are included in what?

Cover: epithelium and superficial LP

Transition/ligament: intermediate LP, deep LP

Body: TA

As tension increases, pitch _____________

Increases

As mass increases, pitch _____________

Decreases

Which muscle controls pitch?

Cricothyroid

In whiich direction does the pars recta tilt the thyroid?

Downwards (like a bow)

In which direction does the pars obique move the thyroid?

Forwards

Which muscle is the primary adductor?

Lateral Cricoarytenoid