Chapter 3 Phonatory System: Laryngeal Musculature Extrinsic Muscles and layers of the vocal folds

Question 1

Extrinsic Muscles

functions

Answer 1

One attachment to the larynx and the other attachment on a structure outside the larynx,

Forms a network that surrounds the larynx and anchors it in position within the neck,

Makes major adjustments to larynx,
Elevating and Depressing

Question 2

Extrinsic Muscles of Larynx

elevators & depressors

Answer 2

Elevators
 digastricus
 stylohyoid
 mylohyoid
 geniohyoid
 genioglossus
 hyoglossus

Depressors
  sternohyoid
  omohyoid
  sternothyroid
  thyohyoid

Question 3

(Extrinsic Muscles)

(Hyoid and Laryngeal Elevators): Digastricus

Answer 3

Anterior, elevates hyoid anteriorly

Posterior, elevates hyoid posteriorly

Question 4

(Extrinsic Muscles)

(Hyoid and Laryngeal Elevators): Stylohyoid muscle

Answer 4

elevates hyoid posteriorly

Question 5

(Extrinsic Muscles)

(Hyoid and Laryngeal Elevators): Mylohyoid muscle

Answer 5

Makes up the floor of oral cavity,

elevates hyoid anteriorly

Question 6

(Extrinsic Muscles)

(Hyoid and Laryngeal Elevators): Geniohyoid muscle

Answer 6

elevates hyoid anteriorly

?chin

Question 7

(Extrinsic Muscles)

(Hyoid and Laryngeal Elevators): Genioglossus muscle ???

Answer 7

Forms the primary muscle of the tongue,
??chin
elevates hyoid

Question 8

(Extrinsic Muscles)

(Hyoid and Laryngeal Elevators): Hyoglossus muscle

Answer 8

elevates hyoid and depresses tongue

Question 9

(Extrinsic Muscles)

(Hyoid and Laryngeal Depressors): Sternohyoid muscle

Answer 9

depresses hyoid

Question 10

(Extrinsic Muscles)

Hyoid and Laryngeal Depressors): Omohyoid muscle (superior and inferior

Answer 10

depresses hyoid

Question 11

(Extrinsic Muscles)

(Hyoid and Laryngeal Depressors): Sternothyroid muscle

Answer 11

Assist on producing high and low pitch,

Helps make fine adjustments to vocal folds,

depresses thyroid cartilage

Question 12

(Extrinsic Muscles)

(Hyoid and Laryngeal Depressors): Thyrohyoid muscle

Answer 12

depresses hyoid or elevates larynx

Question 13

Layers of Vocal Cords Chart

Answer 13

LOOK AT CHART IN PRINTOUTS!!

Question 14

(Layers of the Vocal Folds)

(Cover): Epithelium

Answer 14

Mucosal covering of stratified squamous cells,

Needs a thin layer of mucous lubrication for best oscillation

Question 15

(Layers of the Vocal Folds)

Cover): Superficial lamina propria (also called Reinke’s space

Answer 15

Extracellular gelatin matrix,

Helps cushion the vocal folds

Question 16

(Layers of the Vocal Folds)

(Transition/Vocal Ligament): Intermediate lamina propria

Answer 16

Compose of elastic fibers,

Part of the vocal ligament

Question 17

(Layers of the Vocal Folds)

(Transition/Vocal Ligament): Deep lamina propria

Answer 17

Collagen fibers,

Supportive,

Part of the vocal ligament

Question 18

(Layers of the Vocal Folds)

Body): Vocalis Muscle (Thyrovocalis

Answer 18

Provides tone, stability and mass