muscles of larynx

Question 1

Cricothyroid muscle action, does it lengthen or shorten the vocal ligaments?

Answer 1

TILTS thyroid cartilage forward and down on the cricoid, this LENGTHENS the vocal ligaments

Question 2

Cricothyroid innervation?

Answer 2

External Branch of Superior Laryngeal nerve

Question 3

Cricothyroid attachments?

Answer 3

Cricoid Arch

thyroid cartilage

Question 4

Posterior Cricoarytenoid Muscle attachmetns?

Answer 4

Cricoid Lamina

Muscular process of arytenoid cartilage

Question 5

Posterior Cricoarytenoid Muscle action?

Answer 5

ABducts the vocal folds/ open rima glottidis. Pulls arytenoids backwards, and assists cricothyroid to tense the vocal cords

Question 6

What is the ONLY muscle that opens the rima glottidis

Answer 6

the Posterior Cricoarytenoid Muscle

Question 7

Posterior Cricoarytenoid Muscle Innervation?

Answer 7

Recurrent laryngeal nerve

Question 8

Transverse and Oblique Arytenoid Muscles Attachments

Answer 8

From one arytenoid cartilage to the other arytenoid cartilage

Question 9

Aryepiglottic Muscle attachment

Answer 9

formed by oblique arytenoid fibers that continue into the aryepiglottic fold

Question 10

Action of the Tranverse and Oblique Arytenoid Muscles and Aryepiglottic Muscles?

Answer 10

ADDucts the arytenoid cartilages closing posterior rima glottidis

Question 11

Transverse and Oblique Arytenoid muscles and Aryepiglottic Muscle innervation?

Answer 11

Recurrent laryngeal nerve

Question 12

Vocalis Muscles attachments

Answer 12

Arytenoid cartilage (vocal process)
Angle of the thyroid cartilage and along the vocal ligament

Question 13

Vocalis muscle Action

Answer 13

Produces minute adjustments of the vocal ligaments, contraction produces localized relaxation of the vocal ligament

Question 14

Vocalis Muscle Innervation

Answer 14

Recurrent Laryngeal nerve

Question 15

Thyroarytenoid Muscles attachments

Answer 15

Arytenoid cartilage

Angle of thyroid cartilage and along cricothyroid ligament

Question 16

Thyroarytenoid Muscle action

Answer 16

draw arytenoid cartilages towards the thyroid cartilage, thereby relaxing vocal ligaments

Question 17

Thyroarytenoid Muscles innervation

Answer 17

recurrent laryngeal nerve

Question 18

During deglutition the larynx _____ and ______

Answer 18

elevates and moves anteriorly

Question 19

When u swallow the epiglottis bends _____

Answer 19

bends posteriorly

Question 20

What supplies all laryngeal sensation above the level of the vocal fold?

Answer 20

internal branch of superior laryngeal nerve

Question 21

What supplies all sensation for the larynx BELOW the vocal fold?

Answer 21

recurrent laryngeal nerve

Question 22

What gives motor innervation to all intrinsic muscles of the larynx? What is the exception?

Answer 22

All are innervated by the recurrent laryngeal nerve, except for the cricothyroid muscle which is innervated by EXTERNAL branch of superior laryngeal nerve

Question 23

The inferior laryngeal nerve is the name of the _____ as it passes to the larynx?

Answer 23

recurrent laryngeal nerve

Question 24

the Quadrangular membrane is between the

Answer 24

Epiglottis to arytenoid cartilage

Question 25

What is the aryepiglottic ligament?

Answer 25

its the free SUPERIOR margin of the quadrangular membrane

Question 26

What is the vestibular ligament?

Answer 26

the free INFERIOR margin of the quadrangular membrane

Question 27

Where does the Cricothyroid ligament extend from?

Answer 27

From the Cricoid cartilage to the thyroid cartilage and arytenoid cartilage

Question 28

What is the Vocal ligament?

Answer 28

the free SUPERIOR margin of the cricothyroid ligament

Question 29

What is the aryepiglottic fold?

Answer 29

its the aryepiglottic ligament when it is covered by mucosa, it contains the corniculate and cuneiform cartilages

Question 30

What is the Vestibular fold?

Answer 30

its the vestibular ligament when covered by a mucous membrane, they are also called the FALSE vocal cords

Question 31

What is the Rima vestibuli?

Answer 31

the opening between the vestibular folds

Question 32

What are the Vocal folds?

Answer 32

the Vocal ligaments when they are covered by a mucous membrane, these are the TRUE vocal folds

Question 33

What is the Rima glottidis?

Answer 33

the opening between the vocal folds

Question 34

The laryngeal cavity extends from the laryngeal inlet and extends to the

Answer 34

trachea