Exam 1 Part 6

Question 1

Muscles that move the vocal away from the midline

Answer 1

Abductors

Question 2

Name 1 abductor muscle

Answer 2

Posterior cricoarytenoid

Question 3

Origin of the posterior cricoarytenoid

Answer 3

Posterior cricoid

Question 4

Insertion of the posterior cricoarytenoid

Answer 4

Muscular process (ipsilateral arytenoid)

Question 5

Function of the posterior cricoarytenoid

Answer 5

Pulls vocal folds apart, opening the airway

Question 6

Insertion of the interarytenoid

Answer 6

Opposing arytenoid

Question 7

Muscles that act (functionally) to increase the tension of the VFs

Answer 7

Tensors

Question 8

Name 2 tensors

Answer 8

Cricothyroid, thyroarytenoid

Question 9

What is the function of the cricothyroid

Answer 9

Contraction increases tension of the vocal fold cover and body PASSIVELY; like your finger pulling on a rubber band

Question 10

Function of the thyroarytenoid

Answer 10

Contraction of the medial portion increases tension of the VF body ACTIVELY; like contracting your bicep; Relaxes/loosens the tension of the vocal fold cover upon contraction

Question 11

How do you lower the pitch of your voice?

Answer 11

Shorten the vocal folds

Question 12

Both LCA and PCA inserts into ___ process of arytenoids.

Answer 12

Muscle process

Question 13

T/F: The medial protrusions of arytenoids are muscular process and the lateral ones are vocal process.

Answer 13

False; opposite

Question 14

T/F: In this example, the instructor mentioned the active contraction of cricothyroid muscle caused a passive stretch of vocal fold tissue. There would be NO active contraction of TA muscle at this moment of time.

Answer 14

True

Question 15

When the cricothyroid muscle contracts, it move the thyroid cartilage in what direction?

Answer 15

Anteriorly and inferior

Question 16

How do you produce a lower pitch?

Answer 16

High contraction of TA (vocalis) and low contraction of CT muscle

Question 17

How do you produce a higher pitch?

Answer 17

Low contraction of TA and high contraction of CT (vocalis)

Question 18

Name 2 adductors

Answer 18

Lateral cricoarytenoid (LCA), Interarytenoid (IA)

Question 19

Name 1 abductor

Answer 19

Posterior cricoarytenoid (PCA)

Question 20

Name 2 tensors

Answer 20

Cricothyroid (CT), thyroarytenoid (TA) vocalis