X Vagus: Larynx

Question 1

Laryngeal inlet

Answer 1

Joins the pharynx to the larynx

Question 2

Arytenoid cartilages attachment

Answer 2

Vocal cords

Question 3

Cuneiform and corniculate function

Answer 3

Give firmness to rings of mucosa

Question 4

Extrinsic ligaments of the larynx

Answer 4

Thyrohyoid ligament
Cricotracheal ligament
Hyoepiglottic ligament

Question 5

Thyroepiglottic ligament has what membrane on the sides

Answer 5

Quadrangular membrane

Question 6

Free margins on the sides of quadrangular membrane

Answer 6

Vestibular folds

Question 7

In depressions, vestibular folds attach to

Answer 7

Vestibular fossa

Question 8

Crycothyroid ligament is under what ligament

Answer 8

Vocal ligament

Question 9

Vocal ligament is…

Answer 9

The core of vocal cord

Question 10

From top to bottom: vocal, vestibular, crycothyroid lig.

Answer 10

Vestibular
Vocal
Cricothyroid

Question 11

Rima under rima vestibulis

Answer 11

Rima glotidis

Question 12

Length of rima vestibulis

Answer 12

From one vestibular fold to the other

Question 13

Function of extrinsic muscles

Answer 13

Move larynx as a whole

Question 14

Function of intrinsic muscles

Answer 14

Move vocal cords

Question 15

Function of crycothyroid ligament

Answer 15

Move crycothyroid joint and stretch the vocal cords

Question 16

Function of posterior cricoarytenoid muscle

Answer 16

Abduction of vocal cords –> opening

Question 17

Function of lateral cricoarytenoid muscle

Answer 17

Adduction of vocal cords –> closure

Question 18

Transverse arytenoid muscle function

Answer 18

Adduction –> closure

Question 19

Muscles modifying the diameter of laryngeal inlet

Answer 19

Oblique arytenoid
Aryepiglottic
Thyroepiglottic

Question 20

During forced inspiration

Answer 20

Abduction of vocal cords
Rima glotidis opened
Vestibule opened

Question 21

Phonation

Answer 21

Adduction of vocal cords

Vestibule opened

Question 22

Swallowing

Answer 22

Adduction
Rima glotidis closed
Vestibular folds closed

Question 23

Innervation of intrinsic muscles of larynx

Answer 23

Recurrent laryngeal nerve
Superior laryngeal nerve
Of X vagus nerve

Question 24

Superior laryngeal nerve branches into

Answer 24

Internal

External

Question 25

Internal laryngeal nerve innervates

Answer 25

Thyrohyoid membrane to gather information about the mucosa

Question 26

External laryngeal nerve innervates

Answer 26

Cricothyroid muscle, its a motor nerve

Question 27

Recurrent laryngeal nerve innervates

Answer 27

The rest of intrinsic muscles | Therefore all except thyrohyoid membrane and crycothyroid muscle

Question 28

Piriform recess origin

Answer 28

At the end of the pharynx

Question 29

Vascularization of larynx

Answer 29

External carotid artery --> superior thyroid artery --> superior laryngeal artery

Question 30

Origin of inferior thyroid artery

Answer 30

Thyrocervical trunk

Question 31

Do inferior and superior thyroid arteries anastomose

Answer 31

Yes

Question 32

Venous drainage

Answer 32

Superior laryngeal vein --> internal jugular vein | Inferior laryngeal vein --> bracho-pharyngeal vein