A + P

Question 1

Intrinsic Laryngeal Muscles (5)

Answer 1

• Cricothyroid muscles
• Posterior cricoarytenoid muscles
• Lateral cricoarytenoid muscles
• Interarytenoid muscles
• Thyroarytenoid muscles

Question 2

Cricothyroid muscles (Intrinsic Laryngeal Muscle) –

Answer 2

tenses vocal folds, changes pitch

Question 3

Posterior cricoarytenoid muscles (Intrinsic Laryngeal Muscle) –

Answer 3

the only abductor (apart) of vocal folds

Question 4

Lateral cricoarytenoid muscles (Intrinsic Laryngeal Muscle) –

Answer 4

adductor (together) of vocal folds

Question 5

Interarytenoid muscles (Intrinsic Laryngeal Muscle) -

Answer 5

adductor (together) of vocal folds

Question 6

Thyroarytenoid muscles (Intrinsic Laryngeal Muscle) –

Answer 6

makes up the body of the vocal folds, aids in medialization

Question 7

Cricothyroid muscles (Intrinsic Laryngeal Muscle) are innervated by…

Answer 7

the superior laryngeal branch of vagus. All others are innervated by recurrent branch of vagus.

Question 8

Muscles of the soft palate (4):

Answer 8

1. Levator veli palatini
2. Tensor palatini
3. Palatoglossus
4. Palatopharyngeus

Question 9

Levator veli palatini (Muscle of the soft palate) –

Answer 9

elevates the soft palate.

Question 10

Tensor palatini (Muscle of the soft palate) –

Answer 10

tenses soft palate which may aid in V-P closure.

Question 11

Palatoglossus (Muscle of the soft palate) –

Answer 11

forms the anterior faucial pillars – contraction of this muscle can either lower the soft palate or raise the back of the tongue (also considered a tongue muscle).

Question 12

Palatopharyngeus (Muscle of the soft palate) –

Answer 12

forms the posterior faucial pillars – contraction can either depress the soft palate or elevate the pharynx and larynx for swallowing.

Question 13

Extrinsic muscles of the tongue (4):

Answer 13

• Styloglossus – pulls tongue back and up for sounds like /u/ in “Sue”.
• Hyoglossus – depresses tongue and pulls it backward for sounds like /a/.
• Genioglossus – pulls tongue up and to front for sounds like /i/ in “see”. Also is responsible for sticking out the tongue.
• Palatoglossus – (also called glossopalatine) its contraction can either lower the soft palate or elevate the sides and back of tongue.

Question 14

Styloglossus (Extrinsic muscle of the tongue) -

Answer 14

pulls tongue back and up for sounds like /u/ in “Sue”.

Question 15

Hyoglossus (Extrinsic muscle of the tongue)–

Answer 15

depresses tongue and pulls it backward for sounds like /a/.

Question 16

Genioglossus (Extrinsic muscle of the tongue)–

Answer 16

pulls tongue up and to front for sounds like /i/ in “see”. Also is responsible for sticking out the tongue.

Question 17

Palatoglossus (also called glossopalatine) (Extrinsic muscle of the tongue) -

Answer 17

its contraction can either lower the soft palate or elevate the sides and back of tongue.

Question 18

Intrinsic muscles of the tongue (4):

Answer 18

1. Superior longitudinal muscle
2. Inferior longitudinal muscle
3. Transverse muscle
4. Vertical muscle

Question 19

Superior longitudinal muscle (Intrinsic muscle of the tongue) –

Answer 19

runs from back of tongue to tip of tongue superiorally, curls tongue tip up.

Question 20

Inferior longitudinal muscle (Intrinsic muscle of the tongue) –

Answer 20

runs from back of tongue to tip of tongue inferiorally, depresses tongue tip.

Question 21

Transverse muscle(Intrinsic muscle of the tongue) –

Answer 21

runs from middle of tongue to sides, changes tongue configuration in a variety of ways.

Question 22

Vertical muscle (Intrinsic muscle of the tongue) –

Answer 22

runs from top to bottom of tongue, changes tongue configuration in a variety of ways.

Question 23

What do extrinsic muscles of the tongue do?

Answer 23

determine the gross/base position of the tongue and act to protrude, elevate, and retract the tongue as well as moving it from side to side.

Question 24

What do intrinsic muscles of the tongue do?

Answer 24

determine the surface shape of the tongue.