Larynx

Question 0

Thyroid-Cricoid joint

Answer 0

Permits tilting of the thyroid-cricoid

-Allows to change the pitch of the sound produced

Question 1

Functions of larynx

Answer 1

1. Sound production

2. Closure of respiratory system

Question 2

Arytenoid-Cricoid Joint

Answer 2

Permits rotation and sliding of aryenoid-cricoid

-Closes off the larynx

Question 3

Median thyrohyoid ligament

Answer 3

Thickened part of the thyrohyoid membrane that links the hyoid to the larynx

Question 4

Median cricothyroid ligament

Answer 4

Thickened part of the cricothyroid membrane that attaches the thyroid to the cricoid

Question 5

Cricotracheal ligament

Answer 5

Links the cricoid to the first tracheal cartilage

Question 6

Quadrangular membrane

Answer 6

Link the arytenoid the epiglottis

-Has overlying aryepiglottic folds

Question 7

Thyroepiglottic ligament

Answer 7

Links the epiglottis to the thyroid cartilage

Question 8

Rima glottidis

Answer 8

Opening between vocal cord ligaments

Question 9

Conus elasticus

Answer 9

Vibrating lips that arise from the upper lip of the cricoid

-Edges= VOCAL LIGAMENTS

Question 10

Vestibular folds

Answer 10

“False vocal cords”

Found on the edge of the vocal ligaments

Question 11

Cricothyroid muscle

Answer 11

Tenses the vocal ligaments

=>increased pitch

Question 12

Thyroarytenoid muscles

Answer 12

Relaxes the vocal ligaments

=>decreases the pitch

Question 13

Posterior crico-aytenoid muscle

Answer 13

Abducts the vocal cords

Question 14

Lateral crico-arytenoid muscle

Answer 14

Adducts the arytenoids

Question 15

Aryepiglottic muscle

Answer 15

Pulls epiglottis down during swallowing; covers larynx

-Not necessary in adults

Question 16

Valleculae

Answer 16

depressions in b/w the medial and lateral glossoepiglossic folds

Question 17

Internal laryngeal nerve

Answer 17

Visceral Sensory to area above larynx

-Found above true vocal cords

Question 18

External laryngeal nerve

Answer 18

Branchiomotor to the cricothyroid muscle

Question 19

Recurrent laryngeal nerve

Answer 19

Visceral sensory to larynx BELOW vocal folds

Branchiomotor to all laryngeal muscles (ex. cricothyroid)

Question 20

Swelling of vestibular folds

Answer 20

Can be caused by anaphylactic shock

=>suffocation

Question 21

Cricothyrotomy

Answer 21

Performed during an obstruction of the larynx

Question 22

Corniculate

Answer 22

Nodules above the arytenoids located in the aryepiglottic folds

Question 23

Damage to recurrent laryngeal nerve

Answer 23

Paralysis to all laryngeal muscles except cricothyroid

*Permanent hoarse voice